import socket
import sys
import time
+import argparse
# action can be reflect or drop
action = "drop"
connection.sendall(data)
finally:
connection.close()
-
-def run_server(ip, port):
- print("Starting server {}:{}".format(repr(ip), repr(port)))
+def run_tcp_server(ip, port):
+ print("Starting TCP server {}:{}".format(repr(ip), repr(port)))
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
server_address = (ip, int(port))
sock.bind(server_address)
sock.listen(1)
-
while True:
connection, client_address = sock.accept()
handle_connection (connection, client_address)
+def run_udp_server(ip, port):
+ print("Starting UDP server {}:{}".format(repr(ip), repr(port)))
+ sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+ sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
+ server_address = (ip, int(port))
+ sock.bind(server_address)
+ while True:
+ data, addr = sock.recvfrom(4096)
+ if (action != "drop"):
+ #snd_sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+ sock.sendto (data, addr)
-def prepare_data():
+def run_server(ip, port, proto):
+ if (proto == "tcp"):
+ run_tcp_server(ip, port)
+ elif (proto == "udp"):
+ run_udp_server(ip, port)
+
+def prepare_data(power):
buf = []
- for i in range (0, pow(2, 16)):
+ for i in range (0, pow(2, power)):
buf.append(i & 0xff)
return bytearray(buf)
-def run_client(ip, port):
- print("Starting client {}:{}".format(repr(ip), repr(port)))
+def run_tcp_client(ip, port):
+ print("Starting TCP client {}:{}".format(repr(ip), repr(port)))
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
- server_address = (ip, port)
+ server_address = (ip, int(port))
sock.connect(server_address)
-
- data = prepare_data()
+
+ data = prepare_data(16)
n_rcvd = 0
n_sent = len (data)
try:
sock.sendall(data)
-
+
timeout = time.time() + 2
while n_rcvd < n_sent and time.time() < timeout:
tmp = sock.recv(1500)
print("Difference at byte {}. Sent {} got {}"
.format(n_rcvd + i, data[n_rcvd + i], tmp[i]))
n_rcvd += n_read
-
+
if (n_rcvd < n_sent or n_rcvd > n_sent):
print("Sent {} and got back {}".format(n_sent, n_rcvd))
else:
print("Got back what we've sent!!");
-
+
finally:
sock.close()
-
-def run(mode, ip, port):
+def run_udp_client(ip, port):
+ print("Starting UDP client {}:{}".format(repr(ip), repr(port)))
+ n_packets = 100
+ sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+ server_address = (ip, int(port))
+ data = prepare_data(10)
+ try:
+ for i in range (0, n_packets):
+ sock.sendto(data, server_address)
+ finally:
+ sock.close()
+def run_client(ip, port, proto):
+ if (proto == "tcp"):
+ run_tcp_client(ip, port)
+ elif (proto == "udp"):
+ run_udp_client(ip, port)
+def run(mode, ip, port, proto):
if (mode == "server"):
- run_server (ip, port)
+ run_server (ip, port, proto)
elif (mode == "client"):
- run_client (ip, port)
+ run_client (ip, port, proto)
else:
raise Exception("Unknown mode. Only client and server supported")
if __name__ == "__main__":
- if (len(sys.argv)) < 4:
- raise Exception("Usage: ./dummy_app <mode> <ip> <port> [<action> <test>]")
- if (len(sys.argv) == 6):
- action = sys.argv[4]
- test = int(sys.argv[5])
-
- run (sys.argv[1], sys.argv[2], int(sys.argv[3]))
+ parser = argparse.ArgumentParser()
+ parser.add_argument('-m', action='store', dest='mode')
+ parser.add_argument('-i', action='store', dest='ip')
+ parser.add_argument('-p', action='store', dest='port')
+ parser.add_argument('-proto', action='store', dest='proto')
+ parser.add_argument('-a', action='store', dest='action')
+ parser.add_argument('-t', action='store', dest='test')
+ results = parser.parse_args()
+ action = results.action
+ test = results.test
+ run(results.mode, results.ip, results.port, results.proto)
+ #if (len(sys.argv)) < 4:
+ # raise Exception("Usage: ./dummy_app <mode> <ip> <port> [<action> <test>]")
+ #if (len(sys.argv) == 6):
+ # action = sys.argv[4]
+ # test = int(sys.argv[5])
+ #run (sys.argv[1], sys.argv[2], int(sys.argv[3]))
loop create
set int ip address loop0 6.0.0.1/32
set int state loop0 up
+set int state GigabitEthernet1b/0/0 up
+set int ip address GigabitEthernet1b/0/0 192.168.1.1/24
+
+create host-interface name vpp1
+set int state host-vpp1 up
+set int ip address host-vpp1 6.0.1.1/24
packet-generator new {
name udp
svm_fifo_segment_create_args_t _a, *a = &_a;
int rv;
+ memset (a, 0, sizeof (*a));
a->segment_name = (char *) mp->segment_name;
a->segment_size = mp->segment_size;
/* Attach to the segment vpp created */
u32 bytes_to_snd;
u32 queue_max_chunk = 128 << 10, actual_write;
session_fifo_event_t evt;
- static int serial_number = 0;
int rv;
bytes_to_snd = (bytes == 0) ? vec_len (test_data) : bytes;
/* Fabricate TX event, send to vpp */
evt.fifo = tx_fifo;
evt.event_type = FIFO_EVENT_APP_TX;
- evt.event_id = serial_number++;
unix_shared_memory_queue_add (utm->vpp_event_queue,
(u8 *) & evt,
memset (rmp, 0, sizeof (*rmp));
rmp->_vl_msg_id = ntohs (VL_API_ACCEPT_SESSION_REPLY);
rmp->handle = mp->handle;
+ rmp->context = mp->context;
vl_msg_api_send_shmem (utm->vl_input_queue, (u8 *) & rmp);
session->bytes_received = 0;
/* Fabricate TX event, send to vpp */
evt.fifo = tx_fifo;
evt.event_type = FIFO_EVENT_APP_TX;
- evt.event_id = e->event_id;
q = utm->vpp_event_queue;
unix_shared_memory_queue_add (q, (u8 *) & evt,
void
server_handle_event_queue (uri_tcp_test_main_t * utm)
{
- session_fifo_event_t _e, *e = &_e;;
+ session_fifo_event_t _e, *e = &_e;
while (1)
{
typedef enum
{
STATE_START,
+ STATE_BOUND,
STATE_READY,
STATE_FAILED,
STATE_DISCONNECTING,
/* $$$$ hack: cut-through session index */
volatile u32 cut_through_session_index;
+ volatile u32 connected_session;
/* unique segment name counter */
u32 unique_segment_index;
/* convenience */
svm_fifo_segment_main_t *segment_main;
+ u8 *connect_test_data;
} uri_udp_test_main_t;
#if CLIB_DEBUG > 0
application_send_attach (uri_udp_test_main_t * utm)
{
vl_api_application_attach_t *bmp;
- u32 fifo_size = 3 << 20;
+ u32 fifo_size = 1 << 20;
bmp = vl_msg_api_alloc (sizeof (*bmp));
memset (bmp, 0, sizeof (*bmp));
bmp->context = ntohl (0xfeedface);
bmp->options[APP_OPTIONS_FLAGS] =
APP_OPTIONS_FLAGS_ACCEPT_REDIRECT | APP_OPTIONS_FLAGS_ADD_SEGMENT;
- bmp->options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] = 16;
+ bmp->options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] = 2;
bmp->options[SESSION_OPTIONS_RX_FIFO_SIZE] = fifo_size;
bmp->options[SESSION_OPTIONS_TX_FIFO_SIZE] = fifo_size;
bmp->options[SESSION_OPTIONS_ADD_SEGMENT_SIZE] = 128 << 20;
bmp->options[SESSION_OPTIONS_SEGMENT_SIZE] = 256 << 20;
+ bmp->options[APP_EVT_QUEUE_SIZE] = 16768;
vl_msg_api_send_shmem (utm->vl_input_queue, (u8 *) & bmp);
}
}
static void
-client_send (uri_udp_test_main_t * utm, session_t * session)
+client_send_cut_through (uri_udp_test_main_t * utm, session_t * session)
{
int i;
u8 *test_data = 0;
}
bytes_to_read = svm_fifo_max_dequeue (rx_fifo);
-
bytes_to_read = vec_len (utm->rx_buf) > bytes_to_read ?
bytes_to_read : vec_len (utm->rx_buf);
}
static void
-uri_udp_client_test (uri_udp_test_main_t * utm)
+send_test_chunk (uri_udp_test_main_t * utm, svm_fifo_t * tx_fifo, int mypid,
+ u32 bytes)
+{
+ u8 *test_data = utm->connect_test_data;
+ u64 bytes_sent = 0;
+ int test_buf_offset = 0;
+ u32 bytes_to_snd;
+ u32 queue_max_chunk = 128 << 10, actual_write;
+ session_fifo_event_t evt;
+ int rv;
+
+ bytes_to_snd = (bytes == 0) ? vec_len (test_data) : bytes;
+ if (bytes_to_snd > vec_len (test_data))
+ bytes_to_snd = vec_len (test_data);
+
+ while (bytes_to_snd > 0 && !utm->time_to_stop)
+ {
+ actual_write = (bytes_to_snd > queue_max_chunk) ?
+ queue_max_chunk : bytes_to_snd;
+ rv = svm_fifo_enqueue_nowait (tx_fifo, actual_write,
+ test_data + test_buf_offset);
+
+ if (rv > 0)
+ {
+ bytes_to_snd -= rv;
+ test_buf_offset += rv;
+ bytes_sent += rv;
+
+ if (svm_fifo_set_event (tx_fifo))
+ {
+ /* Fabricate TX event, send to vpp */
+ evt.fifo = tx_fifo;
+ evt.event_type = FIFO_EVENT_APP_TX;
+
+ unix_shared_memory_queue_add (utm->vpp_event_queue,
+ (u8 *) & evt,
+ 0 /* do wait for mutex */ );
+ }
+ }
+ }
+}
+
+static void
+recv_test_chunk (uri_udp_test_main_t * utm, session_t * session)
+{
+ svm_fifo_t *rx_fifo;
+ int buffer_offset, bytes_to_read = 0, rv;
+
+ rx_fifo = session->server_rx_fifo;
+ bytes_to_read = svm_fifo_max_dequeue (rx_fifo);
+ bytes_to_read =
+ vec_len (utm->rx_buf) > bytes_to_read ?
+ bytes_to_read : vec_len (utm->rx_buf);
+
+ buffer_offset = 0;
+ while (bytes_to_read > 0)
+ {
+ rv = svm_fifo_dequeue_nowait (rx_fifo, bytes_to_read,
+ utm->rx_buf + buffer_offset);
+ if (rv > 0)
+ {
+ bytes_to_read -= rv;
+ buffer_offset += rv;
+ }
+ }
+}
+
+void
+client_send_data (uri_udp_test_main_t * utm)
+{
+ u8 *test_data;
+ int mypid = getpid ();
+ session_t *session;
+ svm_fifo_t *tx_fifo;
+ u32 n_iterations;
+ int i;
+
+ vec_validate (utm->connect_test_data, 64 * 1024 - 1);
+ for (i = 0; i < vec_len (utm->connect_test_data); i++)
+ utm->connect_test_data[i] = i & 0xff;
+
+ test_data = utm->connect_test_data;
+ session = pool_elt_at_index (utm->sessions, utm->connected_session);
+ tx_fifo = session->server_tx_fifo;
+
+ ASSERT (vec_len (test_data) > 0);
+
+ vec_validate (utm->rx_buf, vec_len (test_data) - 1);
+ n_iterations = NITER;
+
+ for (i = 0; i < n_iterations; i++)
+ {
+ send_test_chunk (utm, tx_fifo, mypid, 0);
+ recv_test_chunk (utm, session);
+ if (utm->time_to_stop)
+ break;
+ }
+
+ f64 timeout = clib_time_now (&utm->clib_time) + 5;
+ while (clib_time_now (&utm->clib_time) < timeout)
+ {
+ recv_test_chunk (utm, session);
+ }
+
+}
+
+static void
+client_test (uri_udp_test_main_t * utm)
{
session_t *session;
return;
}
- /* Only works with cut through sessions */
- session = pool_elt_at_index (utm->sessions, utm->cut_through_session_index);
+ if (utm->cut_through_session_index != ~0)
+ {
+ session = pool_elt_at_index (utm->sessions,
+ utm->cut_through_session_index);
+ client_send_cut_through (utm, session);
+ }
+ else
+ {
+ session = pool_elt_at_index (utm->sessions, utm->connected_session);
+ client_send_data (utm);
+ }
- client_send (utm, session);
application_detach (utm);
}
return;
}
- utm->state = STATE_READY;
+ utm->state = STATE_BOUND;
}
static void
svm_fifo_segment_create_args_t _a, *a = &_a;
int rv;
+ memset (a, 0, sizeof (*a));
a->segment_name = (char *) mp->segment_name;
a->segment_size = mp->segment_size;
/* Attach to the segment vpp created */
hash_set (utm->session_index_by_vpp_handles, mp->handle,
session - utm->sessions);
- utm->state = STATE_READY;
-
if (pool_elts (utm->sessions) && (pool_elts (utm->sessions) % 20000) == 0)
{
f64 now = clib_time_now (&utm->clib_time);
memset (rmp, 0, sizeof (*rmp));
rmp->_vl_msg_id = ntohs (VL_API_ACCEPT_SESSION_REPLY);
rmp->handle = mp->handle;
+ rmp->context = mp->context;
vl_msg_api_send_shmem (utm->vl_input_queue, (u8 *) & rmp);
+
+ CLIB_MEMORY_BARRIER ();
+ utm->state = STATE_READY;
}
static void
vl_api_connect_session_reply_t_handler (vl_api_connect_session_reply_t * mp)
{
uri_udp_test_main_t *utm = &uri_udp_test_main;
+ session_t *session;
ASSERT (utm->i_am_master == 0);
+ if (mp->retval)
+ {
+ clib_warning ("failed connect");
+ return;
+ }
+
/* We've been redirected */
if (mp->segment_name_length > 0)
{
svm_fifo_segment_main_t *sm = &svm_fifo_segment_main;
svm_fifo_segment_create_args_t _a, *a = &_a;
u32 segment_index;
- session_t *session;
svm_fifo_segment_private_t *seg;
int rv;
vec_add2 (utm->seg, seg, 1);
memcpy (seg, sm->segments + segment_index, sizeof (*seg));
sleep (1);
-
- pool_get (utm->sessions, session);
- utm->cut_through_session_index = session - utm->sessions;
-
- session->server_rx_fifo = uword_to_pointer (mp->server_rx_fifo,
- svm_fifo_t *);
- ASSERT (session->server_rx_fifo);
- session->server_tx_fifo = uword_to_pointer (mp->server_tx_fifo,
- svm_fifo_t *);
- ASSERT (session->server_tx_fifo);
}
- /* security: could unlink /dev/shm/<mp->segment_name> here, maybe */
+ pool_get (utm->sessions, session);
+ session->server_rx_fifo = uword_to_pointer (mp->server_rx_fifo,
+ svm_fifo_t *);
+ ASSERT (session->server_rx_fifo);
+ session->server_tx_fifo = uword_to_pointer (mp->server_tx_fifo,
+ svm_fifo_t *);
+ ASSERT (session->server_tx_fifo);
+ if (mp->segment_name_length > 0)
+ utm->cut_through_session_index = session - utm->sessions;
+ else
+ {
+ utm->connected_session = session - utm->sessions;
+ utm->vpp_event_queue = uword_to_pointer (mp->vpp_event_queue_address,
+ unix_shared_memory_queue_t *);
+ }
utm->state = STATE_READY;
}
{
svm_fifo_t *rx_fifo, *tx_fifo;
int nbytes;
-
session_fifo_event_t evt;
unix_shared_memory_queue_t *q;
int rv;
rx_fifo = e->fifo;
tx_fifo = utm->sessions[rx_fifo->client_session_index].server_tx_fifo;
+ svm_fifo_unset_event (rx_fifo);
do
{
}
while (rv == -2);
- /* Fabricate TX event, send to vpp */
- evt.fifo = tx_fifo;
- evt.event_type = FIFO_EVENT_APP_TX;
- evt.event_id = e->event_id;
-
if (svm_fifo_set_event (tx_fifo))
{
+ /* Fabricate TX event, send to vpp */
+ evt.fifo = tx_fifo;
+ evt.event_type = FIFO_EVENT_APP_TX;
q = utm->vpp_event_queue;
unix_shared_memory_queue_add (q, (u8 *) & evt,
0 /* do wait for mutex */ );
{
session_fifo_event_t _e, *e = &_e;
+ while (utm->state != STATE_READY)
+ sleep (5);
+
while (1)
{
unix_shared_memory_queue_sub (utm->our_event_queue, (u8 *) e,
break;
}
if (PREDICT_FALSE (utm->time_to_stop == 1))
- break;
+ return;
if (PREDICT_FALSE (utm->time_to_print_stats == 1))
{
utm->time_to_print_stats = 0;
}
static void
-server_listen (uri_udp_test_main_t * utm)
+server_bind (uri_udp_test_main_t * utm)
{
vl_api_bind_uri_t *bmp;
application_send_attach (utm);
/* Bind to uri */
- server_listen (utm);
+ server_bind (utm);
- if (wait_for_state_change (utm, STATE_READY))
+ if (wait_for_state_change (utm, STATE_BOUND))
{
- clib_warning ("timeout waiting for STATE_READY");
+ clib_warning ("timeout waiting for STATE_BOUND");
return;
}
utm->i_am_master = i_am_master;
utm->segment_main = &svm_fifo_segment_main;
- utm->connect_uri = format (0, "udp://6.0.0.1/1234%c", 0);
+ utm->connect_uri = format (0, "udp://6.0.1.2/1234%c", 0);
setup_signal_handlers ();
if (i_am_master == 0)
{
- uri_udp_client_test (utm);
+ client_test (utm);
exit (0);
}
u8 init;
u32 *client_session_index_fifo;
volatile u32 bind_session_index;
- u32 tx_event_id;
int main_cpu;
/* vpe input queue */
/* Fabricate TX event, send to vpp */
evt.fifo = tx_fifo;
evt.event_type = FIFO_EVENT_APP_TX;
- evt.event_id = vcm->tx_event_id++;
rval = vppcom_session_at_index (session_index, &session);
if (PREDICT_FALSE (rval))
vnet/session/session_table.c \
vnet/session/session_lookup.c \
vnet/session/session_node.c \
- vnet/session/transport_interface.c \
+ vnet/session/transport.c \
vnet/session/application.c \
vnet/session/session_cli.c \
vnet/session/application_interface.c \
return (flags & FIB_ENTRY_FLAG_LOCAL);
}
+void
+ip_copy (ip46_address_t * dst, ip46_address_t * src, u8 is_ip4)
+{
+ if (is_ip4)
+ dst->ip4.as_u32 = src->ip4.as_u32;
+ else
+ clib_memcpy (&dst->ip6, &src->ip6, sizeof (ip6_address_t));
+}
+
+void
+ip_set (ip46_address_t * dst, void *src, u8 is_ip4)
+{
+ if (is_ip4)
+ dst->ip4.as_u32 = ((ip4_address_t *) src)->as_u32;
+ else
+ clib_memcpy (&dst->ip6, (ip6_address_t *) src, sizeof (ip6_address_t));
+}
+
u8
ip_interface_has_address (u32 sw_if_index, ip46_address_t * ip, u8 is_ip4)
{
return 0;
}
-void
-ip_copy (ip46_address_t * dst, ip46_address_t * src, u8 is_ip4)
+void *
+ip_interface_get_first_ip (u32 sw_if_index, u8 is_ip4)
{
- if (is_ip4)
- dst->ip4.as_u32 = src->ip4.as_u32;
- else
- clib_memcpy (&dst->ip6, &src->ip6, sizeof (ip6_address_t));
-}
+ ip_lookup_main_t *lm4 = &ip4_main.lookup_main;
+ ip_lookup_main_t *lm6 = &ip6_main.lookup_main;
+ ip_interface_address_t *ia = 0;
-void
-ip_set (ip46_address_t * dst, void *src, u8 is_ip4)
-{
if (is_ip4)
- dst->ip4.as_u32 = ((ip4_address_t *) src)->as_u32;
+ {
+ /* *INDENT-OFF* */
+ foreach_ip_interface_address (lm4, ia, sw_if_index, 1 /* unnumbered */ ,
+ ({
+ return ip_interface_address_get_address (lm4, ia);
+ }));
+ /* *INDENT-ON* */
+ }
else
- clib_memcpy (&dst->ip6, (ip6_address_t *) src, sizeof (ip6_address_t));
+ {
+ /* *INDENT-OFF* */
+ foreach_ip_interface_address (lm6, ia, sw_if_index, 1 /* unnumbered */ ,
+ ({
+ ip6_address_t *rv;
+ rv = ip_interface_address_get_address (lm6, ia);
+ /* Trying to use a link-local ip6 src address is a fool's errand */
+ if (!ip6_address_is_link_local_unicast (rv))
+ return rv;
+ }));
+ /* *INDENT-ON* */
+ }
+
+ return 0;
}
/*
u8 ip_interface_has_address (u32 sw_if_index, ip46_address_t * ip, u8 is_ip4);
void ip_copy (ip46_address_t * dst, ip46_address_t * src, u8 is_ip4);
void ip_set (ip46_address_t * dst, void *src, u8 is_ip4);
+void *ip_interface_get_first_ip (u32 sw_if_index, u8 is_ip4);
#endif /* included_ip_main_h */
u32 api_context)
{
segment_manager_t *sm;
- transport_connection_t *tc = 0;
int rv;
/* Make sure we have a segment manager for connects */
app->connects_seg_manager = segment_manager_index (sm);
}
- if ((rv = stream_session_open (app->index, sep, &tc)))
+ if ((rv = session_open (app->index, sep, api_context)))
return rv;
- /* Store api_context for when the reply comes. Not the nicest thing
- * but better than allocating a separate half-open pool. */
- tc->s_index = api_context;
-
return 0;
}
vnet_bind_i (u32 app_index, session_endpoint_t * sep, u64 * handle)
{
application_t *app;
- u32 table_index, listener_index;
+ u32 table_index;
+ u64 listener;
int rv, have_local = 0;
app = application_get_if_valid (app_index);
table_index = application_session_table (app,
session_endpoint_fib_proto (sep));
- listener_index = session_lookup_session_endpoint (table_index, sep);
- if (listener_index != SESSION_INVALID_INDEX)
+ listener = session_lookup_session_endpoint (table_index, sep);
+ if (listener != SESSION_INVALID_HANDLE)
return VNET_API_ERROR_ADDRESS_IN_USE;
/*
if (application_has_local_scope (app) && session_endpoint_is_zero (sep))
{
table_index = application_local_session_table (app);
- listener_index = session_lookup_session_endpoint (table_index, sep);
- if (listener_index != SESSION_INVALID_INDEX)
+ listener = session_lookup_session_endpoint (table_index, sep);
+ if (listener != SESSION_INVALID_HANDLE)
return VNET_API_ERROR_ADDRESS_IN_USE;
session_lookup_add_session_endpoint (table_index, sep, app->index);
*handle = session_lookup_local_listener_make_handle (sep);
{
application_t *server, *app;
u32 table_index;
+ stream_session_t *listener;
if (session_endpoint_is_zero (sep))
return VNET_API_ERROR_INVALID_VALUE;
table_index = application_session_table (app,
session_endpoint_fib_proto (sep));
- app_index = session_lookup_session_endpoint (table_index, sep);
- server = application_get (app_index);
- if (server && (server->flags & APP_OPTIONS_FLAGS_ACCEPT_REDIRECT))
- return app_connect_redirect (server, mp);
+ listener = session_lookup_listener (table_index, sep);
+ if (listener)
+ {
+ server = application_get (listener->app_index);
+ if (server && (server->flags & APP_OPTIONS_FLAGS_ACCEPT_REDIRECT))
+ return app_connect_redirect (server, mp);
+ }
/*
* Not connecting to a local server, propagate to transport
clib_error_t *
vnet_connect_uri (vnet_connect_args_t * a)
{
- session_endpoint_t sep = SESSION_ENDPOINT_NULL;
+ session_endpoint_t sep_null = SESSION_ENDPOINT_NULL;
int rv;
/* Parse uri */
- rv = parse_uri (a->uri, &sep);
+ a->sep = sep_null;
+ rv = parse_uri (a->uri, &a->sep);
if (rv)
return clib_error_return_code (0, rv, 0, "app init: %d", rv);
- if ((rv = vnet_connect_i (a->app_index, a->api_context, &sep, a->mp)))
+ if ((rv = vnet_connect_i (a->app_index, a->api_context, &a->sep, a->mp)))
return clib_error_return_code (0, rv, 0, "connect failed");
return 0;
}
stream_session_t *s;
session_parse_handle (a->handle, &index, &thread_index);
- s = stream_session_get_if_valid (index, thread_index);
+ s = session_get_if_valid (index, thread_index);
if (!s || s->app_index != a->app_index)
return VNET_API_ERROR_INVALID_VALUE;
union
{
char *uri;
- struct
- {
- session_endpoint_t sep;
- transport_proto_t proto;
- };
+ session_endpoint_t sep;
};
u32 app_index;
typedef struct _vnet_connect_args
{
- union
- {
- char *uri;
- struct
- {
- session_endpoint_t sep;
- transport_proto_t proto;
- };
- };
+ char *uri;
+ session_endpoint_t sep;
u32 app_index;
u32 api_context;
/* Used for redirects */
void *mp;
-
- /* used for proxy connections */
- u64 server_handle;
+ u64 session_handle;
} vnet_connect_args_t;
typedef struct _vnet_disconnect_args_t
if (session->session_state != SESSION_STATE_CLOSED)
{
session->session_state = SESSION_STATE_CLOSED;
- session_send_session_evt_to_thread (stream_session_handle
+ session_send_session_evt_to_thread (session_handle
(session),
FIFO_EVENT_DISCONNECT,
thread_index);
session_manager_main_t session_manager_main;
extern transport_proto_vft_t *tp_vfts;
-int
-stream_session_create_i (segment_manager_t * sm, transport_connection_t * tc,
- u8 alloc_fifos, stream_session_t ** ret_s)
+static void
+session_send_evt_to_thread (u64 session_handle, fifo_event_type_t evt_type,
+ u32 thread_index, void *fp, void *rpc_args)
+{
+ u32 tries = 0;
+ session_fifo_event_t evt = { {0}, };
+ unix_shared_memory_queue_t *q;
+
+ evt.event_type = evt_type;
+ if (evt_type == FIFO_EVENT_RPC)
+ {
+ evt.rpc_args.fp = fp;
+ evt.rpc_args.arg = rpc_args;
+ }
+ else
+ evt.session_handle = session_handle;
+
+ q = session_manager_get_vpp_event_queue (thread_index);
+ while (unix_shared_memory_queue_add (q, (u8 *) & evt, 1))
+ {
+ if (tries++ == 3)
+ {
+ SESSION_DBG ("failed to enqueue evt");
+ break;
+ }
+ }
+}
+
+void
+session_send_session_evt_to_thread (u64 session_handle,
+ fifo_event_type_t evt_type,
+ u32 thread_index)
+{
+ session_send_evt_to_thread (session_handle, evt_type, thread_index, 0, 0);
+}
+
+void
+session_send_rpc_evt_to_thread (u32 thread_index, void *fp, void *rpc_args)
+{
+ if (thread_index != vlib_get_thread_index ())
+ session_send_evt_to_thread (0, FIFO_EVENT_RPC, thread_index, fp,
+ rpc_args);
+ else
+ {
+ void (*fnp) (void *) = fp;
+ fnp (rpc_args);
+ }
+}
+
+stream_session_t *
+session_alloc (u32 thread_index)
{
session_manager_main_t *smm = &session_manager_main;
+ stream_session_t *s;
+ u8 will_expand = 0;
+ pool_get_aligned_will_expand (smm->sessions[thread_index], will_expand,
+ CLIB_CACHE_LINE_BYTES);
+ /* If we have peekers, let them finish */
+ if (PREDICT_FALSE (will_expand))
+ {
+ clib_spinlock_lock_if_init (&smm->peekers_write_locks[thread_index]);
+ pool_get_aligned (session_manager_main.sessions[thread_index], s,
+ CLIB_CACHE_LINE_BYTES);
+ clib_spinlock_unlock_if_init (&smm->peekers_write_locks[thread_index]);
+ }
+ else
+ {
+ pool_get_aligned (session_manager_main.sessions[thread_index], s,
+ CLIB_CACHE_LINE_BYTES);
+ }
+ memset (s, 0, sizeof (*s));
+ s->session_index = s - session_manager_main.sessions[thread_index];
+ s->thread_index = thread_index;
+ return s;
+}
+
+static void
+session_free (stream_session_t * s)
+{
+ pool_put (session_manager_main.sessions[s->thread_index], s);
+ if (CLIB_DEBUG)
+ memset (s, 0xFA, sizeof (*s));
+}
+
+static int
+session_alloc_fifos (segment_manager_t * sm, stream_session_t * s)
+{
svm_fifo_t *server_rx_fifo = 0, *server_tx_fifo = 0;
u32 fifo_segment_index;
- u32 pool_index;
- stream_session_t *s;
- u64 value;
- u32 thread_index = tc->thread_index;
int rv;
- ASSERT (thread_index == vlib_get_thread_index ());
+ if ((rv = segment_manager_alloc_session_fifos (sm, &server_rx_fifo,
+ &server_tx_fifo,
+ &fifo_segment_index)))
+ return rv;
+ /* Initialize backpointers */
+ server_rx_fifo->master_session_index = s->session_index;
+ server_rx_fifo->master_thread_index = s->thread_index;
- /* Create the session */
- pool_get_aligned (smm->sessions[thread_index], s, CLIB_CACHE_LINE_BYTES);
- memset (s, 0, sizeof (*s));
- pool_index = s - smm->sessions[thread_index];
+ server_tx_fifo->master_session_index = s->session_index;
+ server_tx_fifo->master_thread_index = s->thread_index;
- /* Allocate fifos */
- if (alloc_fifos)
- {
- if ((rv = segment_manager_alloc_session_fifos (sm, &server_rx_fifo,
- &server_tx_fifo,
- &fifo_segment_index)))
- {
- pool_put (smm->sessions[thread_index], s);
- return rv;
- }
- /* Initialize backpointers */
- server_rx_fifo->master_session_index = pool_index;
- server_rx_fifo->master_thread_index = thread_index;
+ s->server_rx_fifo = server_rx_fifo;
+ s->server_tx_fifo = server_tx_fifo;
+ s->svm_segment_index = fifo_segment_index;
+ return 0;
+}
- server_tx_fifo->master_session_index = pool_index;
- server_tx_fifo->master_thread_index = thread_index;
+static stream_session_t *
+session_alloc_for_connection (transport_connection_t * tc)
+{
+ stream_session_t *s;
+ u32 thread_index = tc->thread_index;
- s->server_rx_fifo = server_rx_fifo;
- s->server_tx_fifo = server_tx_fifo;
- s->svm_segment_index = fifo_segment_index;
- }
+ ASSERT (thread_index == vlib_get_thread_index ());
- /* Initialize state machine, such as it is... */
- s->session_type = session_type_from_proto_and_ip (tc->transport_proto,
- tc->is_ip4);
+ s = session_alloc (thread_index);
+ s->session_type = session_type_from_proto_and_ip (tc->proto, tc->is_ip4);
s->session_state = SESSION_STATE_CONNECTING;
s->thread_index = thread_index;
- s->session_index = pool_index;
- /* Attach transport to session */
+ /* Attach transport to session and vice versa */
s->connection_index = tc->c_index;
-
- /* Attach session to transport */
tc->s_index = s->session_index;
+ return s;
+}
+
+static int
+session_alloc_and_init (segment_manager_t * sm, transport_connection_t * tc,
+ u8 alloc_fifos, stream_session_t ** ret_s)
+{
+ stream_session_t *s;
+ int rv;
+
+ s = session_alloc_for_connection (tc);
+ if (alloc_fifos && (rv = session_alloc_fifos (sm, s)))
+ {
+ session_free (s);
+ return rv;
+ }
/* Add to the main lookup table */
- value = stream_session_handle (s);
- session_lookup_add_connection (tc, value);
+ session_lookup_add_connection (tc, session_handle (s));
*ret_s = s;
-
return 0;
}
* @return Number of bytes enqueued or a negative value if enqueueing failed.
*/
int
-stream_session_enqueue_data (transport_connection_t * tc, vlib_buffer_t * b,
- u32 offset, u8 queue_event, u8 is_in_order)
+session_enqueue_stream_connection (transport_connection_t * tc,
+ vlib_buffer_t * b, u32 offset,
+ u8 queue_event, u8 is_in_order)
{
stream_session_t *s;
int enqueued = 0, rv, in_order_off;
* by calling stream_server_flush_enqueue_events () */
session_manager_main_t *smm = vnet_get_session_manager_main ();
u32 thread_index = s->thread_index;
- u32 my_enqueue_epoch = smm->current_enqueue_epoch[thread_index];
+ u32 enqueue_epoch = smm->current_enqueue_epoch[tc->proto][thread_index];
- if (s->enqueue_epoch != my_enqueue_epoch)
+ if (s->enqueue_epoch != enqueue_epoch)
{
- s->enqueue_epoch = my_enqueue_epoch;
- vec_add1 (smm->session_indices_to_enqueue_by_thread[thread_index],
+ s->enqueue_epoch = enqueue_epoch;
+ vec_add1 (smm->session_to_enqueue[tc->proto][thread_index],
s - smm->sessions[thread_index]);
}
}
return enqueued;
}
+int
+session_enqueue_dgram_connection (stream_session_t * s, vlib_buffer_t * b,
+ u8 proto, u8 queue_event)
+{
+ int enqueued = 0, rv, in_order_off;
+
+ if (svm_fifo_max_enqueue (s->server_rx_fifo) < b->current_length)
+ return -1;
+ enqueued = svm_fifo_enqueue_nowait (s->server_rx_fifo, b->current_length,
+ vlib_buffer_get_current (b));
+ if (PREDICT_FALSE ((b->flags & VLIB_BUFFER_NEXT_PRESENT) && enqueued >= 0))
+ {
+ in_order_off = enqueued > b->current_length ? enqueued : 0;
+ rv = session_enqueue_chain_tail (s, b, in_order_off, 1);
+ if (rv > 0)
+ enqueued += rv;
+ }
+ if (queue_event)
+ {
+ /* Queue RX event on this fifo. Eventually these will need to be flushed
+ * by calling stream_server_flush_enqueue_events () */
+ session_manager_main_t *smm = vnet_get_session_manager_main ();
+ u32 thread_index = s->thread_index;
+ u32 enqueue_epoch = smm->current_enqueue_epoch[proto][thread_index];
+
+ if (s->enqueue_epoch != enqueue_epoch)
+ {
+ s->enqueue_epoch = enqueue_epoch;
+ vec_add1 (smm->session_to_enqueue[proto][thread_index],
+ s - smm->sessions[thread_index]);
+ }
+ }
+ return enqueued;
+}
+
/** Check if we have space in rx fifo to push more bytes */
u8
stream_session_no_space (transport_connection_t * tc, u32 thread_index,
* @return 0 on succes or negative number if failed to send notification.
*/
static int
-stream_session_enqueue_notify (stream_session_t * s, u8 block)
+session_enqueue_notify (stream_session_t * s, u8 block)
{
application_t *app;
session_fifo_event_t evt;
unix_shared_memory_queue_t *q;
- static u32 serial_number;
if (PREDICT_FALSE (s->session_state == SESSION_STATE_CLOSED))
{
/* Fabricate event */
evt.fifo = s->server_rx_fifo;
evt.event_type = FIFO_EVENT_APP_RX;
- evt.event_id = serial_number++;
/* Add event to server's event queue */
q = app->event_queue;
* failures due to API queue being full.
*/
int
-session_manager_flush_enqueue_events (u32 thread_index)
+session_manager_flush_enqueue_events (u8 transport_proto, u32 thread_index)
{
session_manager_main_t *smm = &session_manager_main;
- u32 *session_indices_to_enqueue;
+ u32 *indices;
+ stream_session_t *s;
int i, errors = 0;
- session_indices_to_enqueue =
- smm->session_indices_to_enqueue_by_thread[thread_index];
+ indices = smm->session_to_enqueue[transport_proto][thread_index];
- for (i = 0; i < vec_len (session_indices_to_enqueue); i++)
+ for (i = 0; i < vec_len (indices); i++)
{
- stream_session_t *s0;
-
- /* Get session */
- s0 = stream_session_get_if_valid (session_indices_to_enqueue[i],
- thread_index);
- if (s0 == 0 || stream_session_enqueue_notify (s0, 0 /* don't block */ ))
- {
- errors++;
- }
+ s = session_get_if_valid (indices[i], thread_index);
+ if (s == 0 || session_enqueue_notify (s, 0 /* don't block */ ))
+ errors++;
}
- vec_reset_length (session_indices_to_enqueue);
-
- smm->session_indices_to_enqueue_by_thread[thread_index] =
- session_indices_to_enqueue;
-
- /* Increment enqueue epoch for next round */
- smm->current_enqueue_epoch[thread_index]++;
+ vec_reset_length (indices);
+ smm->session_to_enqueue[transport_proto][thread_index] = indices;
+ smm->current_enqueue_epoch[transport_proto][thread_index]++;
return errors;
}
}
int
-stream_session_connect_notify (transport_connection_t * tc, u8 is_fail)
+session_stream_connect_notify (transport_connection_t * tc, u8 is_fail)
{
application_t *app;
stream_session_t *new_s = 0;
u64 handle;
u32 opaque = 0;
int error = 0;
+ segment_manager_t *sm;
+ u8 alloc_fifos;
+ /*
+ * Find connection handle and cleanup half-open table
+ */
handle = session_lookup_half_open_handle (tc);
if (handle == HALF_OPEN_LOOKUP_INVALID_VALUE)
{
SESSION_DBG ("half-open was removed!");
return -1;
}
-
- /* Cleanup half-open table */
session_lookup_del_half_open (tc);
/* Get the app's index from the handle we stored when opening connection
app = application_get_if_valid (handle >> 32);
if (!app)
return -1;
-
opaque = tc->s_index;
+ /*
+ * Allocate new session with fifos (svm segments are allocated if needed)
+ */
if (!is_fail)
{
- segment_manager_t *sm;
- u8 alloc_fifos;
sm = application_get_connect_segment_manager (app);
alloc_fifos = application_is_proxy (app);
- /* Create new session (svm segments are allocated if needed) */
- if (stream_session_create_i (sm, tc, alloc_fifos, &new_s))
+ if (session_alloc_and_init (sm, tc, alloc_fifos, &new_s))
{
is_fail = 1;
error = -1;
new_s->app_index = app->index;
}
- /* Notify client application */
+ /*
+ * Notify client application
+ */
if (app->cb_fns.session_connected_callback (app->index, opaque, new_s,
is_fail))
{
return error;
}
+typedef struct _session_switch_pool_args
+{
+ u32 session_index;
+ u32 thread_index;
+ u32 new_thread_index;
+ u32 new_session_index;
+} session_switch_pool_args_t;
+
+static void
+session_switch_pool (void *cb_args)
+{
+ session_switch_pool_args_t *args = (session_switch_pool_args_t *) cb_args;
+ stream_session_t *s;
+ ASSERT (args->thread_index == vlib_get_thread_index ());
+ s = session_get (args->session_index, args->thread_index);
+ s->server_tx_fifo->master_session_index = args->new_session_index;
+ s->server_tx_fifo->master_thread_index = args->new_thread_index;
+ tp_vfts[s->session_type].cleanup (s->connection_index, s->thread_index);
+ session_free (s);
+ clib_mem_free (cb_args);
+}
+
+/**
+ * Move dgram session to the right thread
+ */
+int
+session_dgram_connect_notify (transport_connection_t * tc,
+ u32 old_thread_index,
+ stream_session_t ** new_session)
+{
+ stream_session_t *new_s;
+ session_switch_pool_args_t *rpc_args;
+
+ /*
+ * Clone half-open session to the right thread.
+ */
+ new_s = session_clone_safe (tc->s_index, old_thread_index);
+ new_s->connection_index = tc->c_index;
+ new_s->server_rx_fifo->master_session_index = new_s->session_index;
+ new_s->server_rx_fifo->master_thread_index = new_s->thread_index;
+ new_s->session_state = SESSION_STATE_READY;
+ session_lookup_add_connection (tc, session_handle (new_s));
+
+ /*
+ * Ask thread owning the old session to clean it up and make us the tx
+ * fifo owner
+ */
+ rpc_args = clib_mem_alloc (sizeof (*rpc_args));
+ rpc_args->new_session_index = new_s->session_index;
+ rpc_args->new_thread_index = new_s->thread_index;
+ rpc_args->session_index = tc->s_index;
+ rpc_args->thread_index = old_thread_index;
+ session_send_rpc_evt_to_thread (rpc_args->thread_index, session_switch_pool,
+ rpc_args);
+
+ tc->s_index = new_s->session_index;
+ new_s->connection_index = tc->c_index;
+ *new_session = new_s;
+ return 0;
+}
+
void
stream_session_accept_notify (transport_connection_t * tc)
{
void
stream_session_delete (stream_session_t * s)
{
- session_manager_main_t *smm = vnet_get_session_manager_main ();
int rv;
/* Delete from the main lookup table. */
/* Cleanup fifo segments */
segment_manager_dealloc_fifos (s->svm_segment_index, s->server_rx_fifo,
s->server_tx_fifo);
-
- pool_put (smm->sessions[s->thread_index], s);
- if (CLIB_DEBUG)
- memset (s, 0xFA, sizeof (*s));
+ session_free (s);
}
/**
stream_session_t *s;
/* App might've been removed already */
- s = stream_session_get_if_valid (tc->s_index, tc->thread_index);
+ s = session_get_if_valid (tc->s_index, tc->thread_index);
if (!s)
return;
stream_session_delete (s);
session_type_t sst;
int rv;
- sst = session_type_from_proto_and_ip (tc->transport_proto, tc->is_ip4);
+ sst = session_type_from_proto_and_ip (tc->proto, tc->is_ip4);
/* Find the server */
listener = listen_session_get (sst, listener_index);
server = application_get (listener->app_index);
sm = application_get_listen_segment_manager (server, listener);
- if ((rv = stream_session_create_i (sm, tc, 1, &s)))
+ if ((rv = session_alloc_and_init (sm, tc, 1, &s)))
return rv;
s->app_index = server->index;
* @param app_index Index of the application requesting the connect
* @param st Session type requested.
* @param tep Remote transport endpoint
- * @param res Resulting transport connection .
+ * @param opaque Opaque data (typically, api_context) the application expects
+ * on open completion.
*/
int
-stream_session_open (u32 app_index, session_endpoint_t * rmt,
- transport_connection_t ** res)
+session_open (u32 app_index, session_endpoint_t * rmt, u32 opaque)
{
transport_connection_t *tc;
session_type_t sst;
+ segment_manager_t *sm;
+ stream_session_t *s;
+ application_t *app;
int rv;
u64 handle;
rv = tp_vfts[sst].open (session_endpoint_to_transport (rmt));
if (rv < 0)
{
- clib_warning ("Transport failed to open connection.");
+ SESSION_DBG ("Transport failed to open connection.");
return VNET_API_ERROR_SESSION_CONNECT;
}
tc = tp_vfts[sst].get_half_open ((u32) rv);
- /* Save app and tc index. The latter is needed to help establish the
- * connection while the former is needed when the connect notify comes
- * and we have to notify the external app */
- handle = (((u64) app_index) << 32) | (u64) tc->c_index;
-
- /* Add to the half-open lookup table */
- session_lookup_add_half_open (tc, handle);
+ /* If transport offers a stream service, only allocate session once the
+ * connection has been established.
+ */
+ if (transport_is_stream (rmt->transport_proto))
+ {
+ /* Add connection to half-open table and save app and tc index. The
+ * latter is needed to help establish the connection while the former
+ * is needed when the connect notify comes and we have to notify the
+ * external app
+ */
+ handle = (((u64) app_index) << 32) | (u64) tc->c_index;
+ session_lookup_add_half_open (tc, handle);
+
+ /* Store api_context (opaque) for when the reply comes. Not the nicest
+ * thing but better than allocating a separate half-open pool.
+ */
+ tc->s_index = opaque;
+ }
+ /* For dgram type of service, allocate session and fifos now.
+ */
+ else
+ {
+ app = application_get (app_index);
+ sm = application_get_connect_segment_manager (app);
- *res = tc;
+ if (session_alloc_and_init (sm, tc, 1, &s))
+ return -1;
+ s->app_index = app->index;
+ s->session_state = SESSION_STATE_CONNECTING_READY;
+ /* Tell the app about the new event fifo for this session */
+ app->cb_fns.session_connected_callback (app->index, opaque, s, 0);
+ }
return 0;
}
* @param tep Local endpoint to be listened on.
*/
int
-stream_session_listen (stream_session_t * s, session_endpoint_t * tep)
+stream_session_listen (stream_session_t * s, session_endpoint_t * sep)
{
transport_connection_t *tc;
u32 tci;
/* Transport bind/listen */
tci = tp_vfts[s->session_type].bind (s->session_index,
- session_endpoint_to_transport (tep));
+ session_endpoint_to_transport (sep));
if (tci == (u32) ~ 0)
return -1;
/* Add to the main lookup table */
session_lookup_add_connection (tc, s->session_index);
-
return 0;
}
return 0;
}
-void
-session_send_session_evt_to_thread (u64 session_handle,
- fifo_event_type_t evt_type,
- u32 thread_index)
-{
- static u16 serial_number = 0;
- u32 tries = 0;
- session_fifo_event_t evt;
- unix_shared_memory_queue_t *q;
-
- /* Fabricate event */
- evt.session_handle = session_handle;
- evt.event_type = evt_type;
- evt.event_id = serial_number++;
-
- q = session_manager_get_vpp_event_queue (thread_index);
- while (unix_shared_memory_queue_add (q, (u8 *) & evt, 1))
- {
- if (tries++ == 3)
- {
- TCP_DBG ("failed to enqueue evt");
- break;
- }
- }
-}
-
/**
* Disconnect session and propagate to transport. This should eventually
* result in a delete notification that allows us to cleanup session state.
return SESSION_N_TYPES;
}
+transport_connection_t *
+session_get_transport (stream_session_t * s)
+{
+ if (s->session_state >= SESSION_STATE_READY)
+ return tp_vfts[s->session_type].get_connection (s->connection_index,
+ s->thread_index);
+ return 0;
+}
+
+transport_connection_t *
+listen_session_get_transport (stream_session_t * s)
+{
+ return tp_vfts[s->session_type].get_listener (s->connection_index);
+}
+
int
listen_session_get_local_session_endpoint (stream_session_t * listener,
session_endpoint_t * sep)
/* N.B. The ip should not be copied because this is the local endpoint */
sep->port = tc->lcl_port;
- sep->transport_proto = tc->transport_proto;
+ sep->transport_proto = tc->proto;
sep->is_ip4 = tc->is_ip4;
return 0;
}
vlib_thread_main_t *vtm = vlib_get_thread_main ();
u32 num_threads;
u32 preallocated_sessions_per_worker;
- int i;
+ int i, j;
num_threads = 1 /* main thread */ + vtm->n_threads;
/* configure per-thread ** vectors */
vec_validate (smm->sessions, num_threads - 1);
- vec_validate (smm->session_indices_to_enqueue_by_thread, num_threads - 1);
vec_validate (smm->tx_buffers, num_threads - 1);
vec_validate (smm->pending_event_vector, num_threads - 1);
+ vec_validate (smm->pending_disconnects, num_threads - 1);
vec_validate (smm->free_event_vector, num_threads - 1);
- vec_validate (smm->current_enqueue_epoch, num_threads - 1);
vec_validate (smm->vpp_event_queues, num_threads - 1);
+ vec_validate (smm->session_peekers, num_threads - 1);
+ vec_validate (smm->peekers_readers_locks, num_threads - 1);
+ vec_validate (smm->peekers_write_locks, num_threads - 1);
+
+ for (i = 0; i < TRANSPORT_N_PROTO; i++)
+ for (j = 0; j < num_threads; j++)
+ {
+ vec_validate (smm->session_to_enqueue[i], num_threads - 1);
+ vec_validate (smm->current_enqueue_epoch[i], num_threads - 1);
+ }
for (i = 0; i < num_threads; i++)
{
_vec_len (smm->free_event_vector[i]) = 0;
vec_validate (smm->pending_event_vector[i], 0);
_vec_len (smm->pending_event_vector[i]) = 0;
+ vec_validate (smm->pending_disconnects[i], 0);
+ _vec_len (smm->pending_disconnects[i]) = 0;
}
#if SESSION_DBG
session_lookup_init ();
app_namespaces_init ();
+ transport_init ();
smm->is_enabled = 1;
rpc_args_t rpc_args;
};
u8 event_type;
- u16 event_id;
+ u8 postponed;
}) session_fifo_event_t;
/* *INDENT-ON* */
/** Per worker thread session pools */
stream_session_t **sessions;
+ /** Per worker-thread count of threads peeking into the session pool */
+ u32 *session_peekers;
+
+ /** Per worker-thread rw peekers locks */
+ clib_spinlock_t *peekers_readers_locks;
+ clib_spinlock_t *peekers_write_locks;
+
/** Pool of listen sessions. Same type as stream sessions to ease lookups */
stream_session_t *listen_sessions[SESSION_N_TYPES];
- /** Sparse vector to map dst port to stream server */
- u16 *stream_server_by_dst_port[SESSION_N_TYPES];
-
- /** per-worker enqueue epoch counters */
- u8 *current_enqueue_epoch;
+ /** Per-proto, per-worker enqueue epoch counters */
+ u8 *current_enqueue_epoch[TRANSPORT_N_PROTO];
- /** Per-worker thread vector of sessions to enqueue */
- u32 **session_indices_to_enqueue_by_thread;
+ /** Per-proto, per-worker thread vector of sessions to enqueue */
+ u32 **session_to_enqueue[TRANSPORT_N_PROTO];
/** per-worker tx buffer free lists */
u32 **tx_buffers;
/** per-worker active event vectors */
session_fifo_event_t **pending_event_vector;
+ /** per-worker postponed disconnects */
+ session_fifo_event_t **pending_disconnects;
+
/** vpp fifo event queue */
unix_shared_memory_queue_t **vpp_event_queues;
return 1;
}
+stream_session_t *session_alloc (u32 thread_index);
+
always_inline stream_session_t *
session_get (u32 si, u32 thread_index)
{
}
always_inline stream_session_t *
-stream_session_get_if_valid (u64 si, u32 thread_index)
+session_get_if_valid (u64 si, u32 thread_index)
{
if (thread_index >= vec_len (session_manager_main.sessions))
return 0;
}
always_inline u64
-stream_session_handle (stream_session_t * s)
+session_handle (stream_session_t * s)
{
return ((u64) s->thread_index << 32) | (u64) s->session_index;
}
session_index_from_handle (handle));
}
+/**
+ * Acquires a lock that blocks a session pool from expanding.
+ *
+ * This is typically used for safely peeking into other threads'
+ * pools in order to clone elements. Lock should be dropped as soon
+ * as possible by calling @ref session_pool_remove_peeker.
+ *
+ * NOTE: Avoid using pool_elt_at_index while the lock is held because
+ * it may lead to free elt bitmap expansion/contraction!
+ */
+always_inline void
+session_pool_add_peeker (u32 thread_index)
+{
+ session_manager_main_t *smm = &session_manager_main;
+ if (thread_index == vlib_get_thread_index ())
+ return;
+ clib_spinlock_lock_if_init (&smm->peekers_readers_locks[thread_index]);
+ smm->session_peekers[thread_index] += 1;
+ if (smm->session_peekers[thread_index] == 1)
+ clib_spinlock_lock_if_init (&smm->peekers_write_locks[thread_index]);
+ clib_spinlock_unlock_if_init (&smm->peekers_readers_locks[thread_index]);
+}
+
+always_inline void
+session_pool_remove_peeker (u32 thread_index)
+{
+ session_manager_main_t *smm = &session_manager_main;
+ if (thread_index == vlib_get_thread_index ())
+ return;
+ ASSERT (session_manager_main.session_peekers[thread_index] > 0);
+ clib_spinlock_lock_if_init (&smm->peekers_readers_locks[thread_index]);
+ smm->session_peekers[thread_index] -= 1;
+ if (smm->session_peekers[thread_index] == 0)
+ clib_spinlock_unlock_if_init (&smm->peekers_write_locks[thread_index]);
+ clib_spinlock_unlock_if_init (&smm->peekers_readers_locks[thread_index]);
+}
+
+/**
+ * Get session from handle and 'lock' pool resize if not in same thread
+ *
+ * Caller should drop the peek 'lock' as soon as possible.
+ */
+always_inline stream_session_t *
+session_get_from_handle_safe (u64 handle)
+{
+ session_manager_main_t *smm = &session_manager_main;
+ u32 thread_index = session_thread_from_handle (handle);
+ if (thread_index == vlib_get_thread_index ())
+ {
+ return pool_elt_at_index (smm->sessions[thread_index],
+ session_index_from_handle (handle));
+ }
+ else
+ {
+ session_pool_add_peeker (thread_index);
+ /* Don't use pool_elt_at index. See @ref session_pool_add_peeker */
+ return smm->sessions[thread_index] + session_index_from_handle (handle);
+ }
+}
+
always_inline stream_session_t *
stream_session_listener_get (u8 sst, u64 si)
{
return s->server_rx_fifo->nitems;
}
+always_inline u32
+session_get_index (stream_session_t * s)
+{
+ return (s - session_manager_main.sessions[s->thread_index]);
+}
+
+always_inline stream_session_t *
+session_clone_safe (u32 session_index, u32 thread_index)
+{
+ stream_session_t *old_s, *new_s;
+ u32 current_thread_index = vlib_get_thread_index ();
+
+ /* If during the memcpy pool is reallocated AND the memory allocator
+ * decides to give the old chunk of memory to somebody in a hurry to
+ * scribble something on it, we have a problem. So add this thread as
+ * a session pool peeker.
+ */
+ session_pool_add_peeker (thread_index);
+ new_s = session_alloc (current_thread_index);
+ old_s = session_manager_main.sessions[thread_index] + session_index;
+ clib_memcpy (new_s, old_s, sizeof (*new_s));
+ session_pool_remove_peeker (thread_index);
+ new_s->thread_index = current_thread_index;
+ new_s->session_index = session_get_index (new_s);
+ return new_s;
+}
+
+transport_connection_t *session_get_transport (stream_session_t * s);
+
u32 stream_session_tx_fifo_max_dequeue (transport_connection_t * tc);
+stream_session_t *session_alloc (u32 thread_index);
int
-stream_session_enqueue_data (transport_connection_t * tc, vlib_buffer_t * b,
- u32 offset, u8 queue_event, u8 is_in_order);
-int
-stream_session_peek_bytes (transport_connection_t * tc, u8 * buffer,
- u32 offset, u32 max_bytes);
+session_enqueue_stream_connection (transport_connection_t * tc,
+ vlib_buffer_t * b, u32 offset,
+ u8 queue_event, u8 is_in_order);
+int session_enqueue_dgram_connection (stream_session_t * s, vlib_buffer_t * b,
+ u8 proto, u8 queue_event);
+int stream_session_peek_bytes (transport_connection_t * tc, u8 * buffer,
+ u32 offset, u32 max_bytes);
u32 stream_session_dequeue_drop (transport_connection_t * tc, u32 max_bytes);
-int stream_session_connect_notify (transport_connection_t * tc, u8 is_fail);
+int session_stream_connect_notify (transport_connection_t * tc, u8 is_fail);
+int session_dgram_connect_notify (transport_connection_t * tc,
+ u32 old_thread_index,
+ stream_session_t ** new_session);
void stream_session_init_fifos_pointers (transport_connection_t * tc,
u32 rx_pointer, u32 tx_pointer);
void stream_session_disconnect_notify (transport_connection_t * tc);
void stream_session_delete_notify (transport_connection_t * tc);
void stream_session_reset_notify (transport_connection_t * tc);
-int
-stream_session_accept (transport_connection_t * tc, u32 listener_index,
- u8 notify);
-int
-stream_session_open (u32 app_index, session_endpoint_t * tep,
- transport_connection_t ** tc);
+int stream_session_accept (transport_connection_t * tc, u32 listener_index,
+ u8 notify);
+int session_open (u32 app_index, session_endpoint_t * tep, u32 opaque);
int stream_session_listen (stream_session_t * s, session_endpoint_t * tep);
int stream_session_stop_listen (stream_session_t * s);
void stream_session_disconnect (stream_session_t * s);
return session_manager_main.vpp_event_queues[thread_index];
}
-int session_manager_flush_enqueue_events (u32 thread_index);
+int session_manager_flush_enqueue_events (u8 proto, u32 thread_index);
always_inline u64
listen_session_get_handle (stream_session_t * s)
pool_put (session_manager_main.listen_sessions[s->session_type], s);
}
+transport_connection_t *listen_session_get_transport (stream_session_t * s);
+
int
listen_session_get_local_session_endpoint (stream_session_t * listener,
session_endpoint_t * sep);
mp->_vl_msg_id = clib_host_to_net_u16 (VL_API_ACCEPT_SESSION);
mp->context = server->index;
listener = listen_session_get (s->session_type, s->listener_index);
- tp_vft = session_get_transport_vft (s->session_type);
+ tp_vft = transport_protocol_get_vft (s->session_type);
tc = tp_vft->get_connection (s->connection_index, s->thread_index);
mp->listener_handle = listen_session_get_handle (listener);
- mp->handle = stream_session_handle (s);
+ mp->handle = session_handle (s);
mp->server_rx_fifo = pointer_to_uword (s->server_rx_fifo);
mp->server_tx_fifo = pointer_to_uword (s->server_tx_fifo);
mp->vpp_event_queue_address = pointer_to_uword (vpp_queue);
mp = vl_msg_api_alloc (sizeof (*mp));
memset (mp, 0, sizeof (*mp));
mp->_vl_msg_id = clib_host_to_net_u16 (VL_API_DISCONNECT_SESSION);
- mp->handle = stream_session_handle (s);
+ mp->handle = session_handle (s);
vl_msg_api_send_shmem (q, (u8 *) & mp);
}
mp = vl_msg_api_alloc (sizeof (*mp));
memset (mp, 0, sizeof (*mp));
mp->_vl_msg_id = clib_host_to_net_u16 (VL_API_RESET_SESSION);
- mp->handle = stream_session_handle (s);
+ mp->handle = session_handle (s);
vl_msg_api_send_shmem (q, (u8 *) & mp);
}
vpp_queue = session_manager_get_vpp_event_queue (s->thread_index);
mp->server_rx_fifo = pointer_to_uword (s->server_rx_fifo);
mp->server_tx_fifo = pointer_to_uword (s->server_tx_fifo);
- mp->handle = stream_session_handle (s);
+ mp->handle = session_handle (s);
mp->vpp_event_queue_address = pointer_to_uword (vpp_queue);
mp->retval = 0;
}
rv = VNET_API_ERROR_APPLICATION_NOT_ATTACHED;
}
+ /*
+ * Don't reply to stream (tcp) connects. The reply will come once
+ * the connection is established. In case of the redirects, the reply
+ * will come from the server app.
+ */
if (rv == 0 || rv == VNET_API_ERROR_SESSION_REDIRECT)
return;
- /* Got some error, relay it */
-
done:
/* *INDENT-OFF* */
REPLY_MACRO (VL_API_CONNECT_SESSION_REPLY);
return;
session_parse_handle (mp->handle, &index, &thread_index);
- s = stream_session_get_if_valid (index, thread_index);
+ s = session_get_if_valid (index, thread_index);
if (s == 0 || app->index != s->app_index)
{
clib_warning ("Invalid session!");
else
{
session_parse_handle (mp->handle, &session_index, &thread_index);
- s = stream_session_get_if_valid (session_index, thread_index);
+ s = session_get_if_valid (session_index, thread_index);
if (!s)
{
clib_warning ("session doesn't exist");
a->sep.port = mp->port;
a->sep.fib_index = mp->vrf;
a->sep.sw_if_index = ENDPOINT_INVALID_INDEX;
+ a->sep.transport_proto = mp->proto;
a->app_index = app->index;
- a->proto = mp->proto;
if ((error = vnet_bind (a)))
{
int verbose = va_arg (*args, int);
transport_proto_vft_t *tp_vft;
u8 *str = 0;
- tp_vft = session_get_transport_vft (ss->session_type);
+ tp_vft = transport_protocol_get_vft (ss->session_type);
if (verbose == 1 && ss->session_state >= SESSION_STATE_ACCEPTING)
str = format (0, "%-10u%-10u%-10lld",
svm_fifo_max_enqueue (ss->server_tx_fifo),
stream_session_get_index (ss));
- if (ss->session_state == SESSION_STATE_READY
- || ss->session_state == SESSION_STATE_ACCEPTING
- || ss->session_state == SESSION_STATE_CLOSED)
+ if (ss->session_state >= SESSION_STATE_ACCEPTING)
{
s = format (s, "%U", tp_vft->format_connection, ss->connection_index,
ss->thread_index, verbose);
return 0;
if (is_ip4)
- s = session_lookup4 (fib_index, &lcl.ip4, &rmt.ip4,
- clib_host_to_net_u16 (lcl_port),
- clib_host_to_net_u16 (rmt_port), proto);
+ s = session_lookup_safe4 (fib_index, &lcl.ip4, &rmt.ip4,
+ clib_host_to_net_u16 (lcl_port),
+ clib_host_to_net_u16 (rmt_port), proto);
else
- s = session_lookup6 (fib_index, &lcl.ip6, &rmt.ip6,
- clib_host_to_net_u16 (lcl_port),
- clib_host_to_net_u16 (rmt_port), proto);
+ s = session_lookup_safe6 (fib_index, &lcl.ip6, &rmt.ip6,
+ clib_host_to_net_u16 (lcl_port),
+ clib_host_to_net_u16 (rmt_port), proto);
if (s)
{
*result = s;
+ session_pool_remove_peeker (s->thread_index);
return 1;
}
return 0;
if (session_index != ~0)
{
- session = stream_session_get_if_valid (session_index, thread_index);
+ session = session_get_if_valid (session_index, thread_index);
if (!session)
return clib_error_return (0, "no session %d on thread %d",
session_index, thread_index);
make_v4_ss_kv_from_tc (session_kv4_t * kv, transport_connection_t * t)
{
make_v4_ss_kv (kv, &t->lcl_ip.ip4, &t->rmt_ip.ip4, t->lcl_port, t->rmt_port,
- session_type_from_proto_and_ip (t->transport_proto, 1));
+ session_type_from_proto_and_ip (t->proto, 1));
}
always_inline void
make_v6_ss_kv_from_tc (session_kv6_t * kv, transport_connection_t * t)
{
make_v6_ss_kv (kv, &t->lcl_ip.ip6, &t->rmt_ip.ip6, t->lcl_port, t->rmt_port,
- session_type_from_proto_and_ip (t->transport_proto, 0));
+ session_type_from_proto_and_ip (t->proto, 0));
}
return session_lookup_del_connection (ts);
}
-u32
+u64
session_lookup_session_endpoint (u32 table_index, session_endpoint_t * sep)
{
session_table_t *st;
st = session_table_get (table_index);
if (!st)
- return SESSION_INVALID_INDEX;
+ return SESSION_INVALID_HANDLE;
if (sep->is_ip4)
{
make_v4_listener_kv (&kv4, &sep->ip.ip4, sep->port,
sep->transport_proto);
rv = clib_bihash_search_inline_16_8 (&st->v4_session_hash, &kv4);
if (rv == 0)
- return (u32) kv4.value;
+ return kv4.value;
}
else
{
sep->transport_proto);
rv = clib_bihash_search_inline_48_8 (&st->v6_session_hash, &kv6);
if (rv == 0)
- return (u32) kv6.value;
+ return kv6.value;
}
- return SESSION_INVALID_INDEX;
+ return SESSION_INVALID_HANDLE;
+}
+
+stream_session_t *
+session_lookup_global_session_endpoint (session_endpoint_t * sep)
+{
+ session_table_t *st;
+ session_kv4_t kv4;
+ session_kv6_t kv6;
+ u8 fib_proto;
+ u32 table_index;
+ int rv;
+
+ fib_proto = session_endpoint_fib_proto (sep);
+ table_index = session_lookup_get_index_for_fib (fib_proto, sep->fib_index);
+ st = session_table_get (table_index);
+ if (!st)
+ return 0;
+ if (sep->is_ip4)
+ {
+ make_v4_listener_kv (&kv4, &sep->ip.ip4, sep->port,
+ sep->transport_proto);
+ rv = clib_bihash_search_inline_16_8 (&st->v4_session_hash, &kv4);
+ if (rv == 0)
+ return session_get_from_handle (kv4.value);
+ }
+ else
+ {
+ make_v6_listener_kv (&kv6, &sep->ip.ip6, sep->port,
+ sep->transport_proto);
+ rv = clib_bihash_search_inline_48_8 (&st->v6_session_hash, &kv6);
+ if (rv == 0)
+ return session_get_from_handle (kv6.value);
+ }
+ return 0;
}
u32
if (tc->is_ip4)
{
make_v4_ss_kv (&kv4, &tc->lcl_ip.ip4, &tc->rmt_ip.ip4, tc->lcl_port,
- tc->rmt_port, tc->transport_proto);
+ tc->rmt_port, tc->proto);
rv = clib_bihash_search_inline_16_8 (&st->v4_half_open_hash, &kv4);
if (rv == 0)
return kv4.value;
else
{
make_v6_ss_kv (&kv6, &tc->lcl_ip.ip6, &tc->rmt_ip.ip6, tc->lcl_port,
- tc->rmt_port, tc->transport_proto);
+ tc->rmt_port, tc->proto);
rv = clib_bihash_search_inline_48_8 (&st->v6_half_open_hash, &kv6);
if (rv == 0)
return kv6.value;
/**
* Lookup session with ip4 and transport layer information
*
- * Lookup logic is identical to that of @ref session_lookup_connection_wt4 but
- * this returns a session as opposed to a transport connection;
+ * Important note: this may look into another thread's pool table and
+ * register as 'peeker'. Caller should call @ref session_pool_remove_peeker as
+ * if needed as soon as possible.
+ *
+ * Lookup logic is similar to that of @ref session_lookup_connection_wt4 but
+ * this returns a session as opposed to a transport connection and it does not
+ * try to lookup half-open sessions.
+ *
+ * Typically used by dgram connections
*/
stream_session_t *
-session_lookup4 (u32 fib_index, ip4_address_t * lcl, ip4_address_t * rmt,
- u16 lcl_port, u16 rmt_port, u8 proto)
+session_lookup_safe4 (u32 fib_index, ip4_address_t * lcl, ip4_address_t * rmt,
+ u16 lcl_port, u16 rmt_port, u8 proto)
{
session_table_t *st;
session_kv4_t kv4;
make_v4_ss_kv (&kv4, lcl, rmt, lcl_port, rmt_port, proto);
rv = clib_bihash_search_inline_16_8 (&st->v4_session_hash, &kv4);
if (rv == 0)
- return session_get_from_handle (kv4.value);
+ return session_get_from_handle_safe (kv4.value);
/* If nothing is found, check if any listener is available */
if ((s = session_lookup_listener4_i (st, lcl, lcl_port, proto)))
return s;
-
- /* Finally, try half-open connections */
- rv = clib_bihash_search_inline_16_8 (&st->v4_half_open_hash, &kv4);
- if (rv == 0)
- return session_get_from_handle (kv4.value);
return 0;
}
/**
* Lookup session with ip6 and transport layer information
*
- * Lookup logic is identical to that of @ref session_lookup_connection_wt6 but
- * this returns a session as opposed to a transport connection;
+ * Important note: this may look into another thread's pool table and
+ * register as 'peeker'. Caller should call @ref session_pool_remove_peeker as
+ * if needed as soon as possible.
+ *
+ * Lookup logic is similar to that of @ref session_lookup_connection_wt6 but
+ * this returns a session as opposed to a transport connection and it does not
+ * try to lookup half-open sessions.
+ *
+ * Typically used by dgram connections
*/
stream_session_t *
-session_lookup6 (u32 fib_index, ip6_address_t * lcl, ip6_address_t * rmt,
- u16 lcl_port, u16 rmt_port, u8 proto)
+session_lookup_safe6 (u32 fib_index, ip6_address_t * lcl, ip6_address_t * rmt,
+ u16 lcl_port, u16 rmt_port, u8 proto)
{
session_table_t *st;
session_kv6_t kv6;
make_v6_ss_kv (&kv6, lcl, rmt, lcl_port, rmt_port, proto);
rv = clib_bihash_search_inline_48_8 (&st->v6_session_hash, &kv6);
if (rv == 0)
- return session_get_from_handle (kv6.value);
+ return session_get_from_handle_safe (kv6.value);
/* If nothing is found, check if any listener is available */
if ((s = session_lookup_listener6_i (st, lcl, lcl_port, proto)))
return s;
-
- /* Finally, try half-open connections */
- rv = clib_bihash_search_inline_48_8 (&st->v6_half_open_hash, &kv6);
- if (rv == 0)
- return session_get_from_handle (kv6.value);
return 0;
}
#include <vnet/session/stream_session.h>
#include <vnet/session/transport.h>
-stream_session_t *session_lookup4 (u32 fib_index, ip4_address_t * lcl,
- ip4_address_t * rmt, u16 lcl_port,
- u16 rmt_port, u8 proto);
-stream_session_t *session_lookup6 (u32 fib_index, ip6_address_t * lcl,
- ip6_address_t * rmt, u16 lcl_port,
- u16 rmt_port, u8 proto);
+stream_session_t *session_lookup_safe4 (u32 fib_index, ip4_address_t * lcl,
+ ip4_address_t * rmt, u16 lcl_port,
+ u16 rmt_port, u8 proto);
+stream_session_t *session_lookup_safe6 (u32 fib_index, ip6_address_t * lcl,
+ ip6_address_t * rmt, u16 lcl_port,
+ u16 rmt_port, u8 proto);
transport_connection_t *session_lookup_connection_wt4 (u32 fib_index,
ip4_address_t * lcl,
ip4_address_t * rmt,
session_endpoint_t * sep);
int session_lookup_add_connection (transport_connection_t * tc, u64 value);
int session_lookup_del_connection (transport_connection_t * tc);
-u32 session_lookup_session_endpoint (u32 table_index,
+u64 session_lookup_session_endpoint (u32 table_index,
session_endpoint_t * sep);
u32 session_lookup_local_session_endpoint (u32 table_index,
session_endpoint_t * sep);
+stream_session_t *session_lookup_global_session_endpoint (session_endpoint_t
+ *);
int session_lookup_add_session_endpoint (u32 table_index,
session_endpoint_t * sep, u64 value);
int session_lookup_del_session_endpoint (u32 table_index,
next_index = next0 = session_type_to_next[s0->session_type];
- transport_vft = session_get_transport_vft (s0->session_type);
+ transport_vft = transport_protocol_get_vft (s0->session_type);
tc0 = transport_vft->get_connection (s0->connection_index, thread_index);
/* Make sure we have space to send and there's something to dequeue */
always_inline stream_session_t *
session_event_get_session (session_fifo_event_t * e, u8 thread_index)
{
- return stream_session_get_if_valid (e->fifo->master_session_index,
- thread_index);
+ return session_get_if_valid (e->fifo->master_session_index, thread_index);
}
void
vlib_frame_t * frame)
{
session_manager_main_t *smm = vnet_get_session_manager_main ();
- session_fifo_event_t *my_pending_event_vector, *e;
+ session_fifo_event_t *my_pending_event_vector, *pending_disconnects, *e;
session_fifo_event_t *my_fifo_events;
u32 n_to_dequeue, n_events;
unix_shared_memory_queue_t *q;
/* min number of events we can dequeue without blocking */
n_to_dequeue = q->cursize;
my_pending_event_vector = smm->pending_event_vector[my_thread_index];
+ pending_disconnects = smm->pending_disconnects[my_thread_index];
- if (n_to_dequeue == 0 && vec_len (my_pending_event_vector) == 0)
+ if (!n_to_dequeue && !vec_len (my_pending_event_vector)
+ && !vec_len (pending_disconnects))
return 0;
SESSION_EVT_DBG (SESSION_EVT_DEQ_NODE, 0);
pthread_mutex_unlock (&q->mutex);
vec_append (my_fifo_events, my_pending_event_vector);
+ vec_append (my_fifo_events, smm->pending_disconnects[my_thread_index]);
_vec_len (my_pending_event_vector) = 0;
smm->pending_event_vector[my_thread_index] = my_pending_event_vector;
+ _vec_len (smm->pending_disconnects[my_thread_index]) = 0;
skip_dequeue:
n_events = vec_len (my_fifo_events);
}
break;
case FIFO_EVENT_DISCONNECT:
+ /* Make sure disconnects run after the pending list is drained */
+ if (!e0->postponed)
+ {
+ e0->postponed = 1;
+ vec_add1 (smm->pending_disconnects[my_thread_index], *e0);
+ continue;
+ }
s0 = session_get_from_handle (e0->session_handle);
stream_session_disconnect (s0);
break;
#define SESSION_TABLE_INVALID_INDEX ((u32)~0)
#define SESSION_LOCAL_TABLE_PREFIX ((u32)~0)
#define SESSION_INVALID_INDEX ((u32)~0)
+#define SESSION_INVALID_HANDLE ((u64)~0)
typedef int (*ip4_session_table_walk_fn_t) (clib_bihash_kv_16_8_t * kvp,
void *ctx);
SESSION_TEST ((s->app_index == server_index), "app_index should be that of "
"the server");
server_local_st_index = application_local_session_table (server);
- local_listener = session_lookup_session_endpoint (server_local_st_index,
- &server_sep);
+ local_listener =
+ session_lookup_local_session_endpoint (server_local_st_index,
+ &server_sep);
SESSION_TEST ((local_listener != SESSION_INVALID_INDEX),
"listener should exist in local table");
s = session_lookup_listener (server_st_index, &server_sep);
SESSION_TEST ((s == 0), "listener should not exist in global table");
- local_listener = session_lookup_session_endpoint (server_local_st_index,
- &server_sep);
+ local_listener =
+ session_lookup_local_session_endpoint (server_local_st_index,
+ &server_sep);
SESSION_TEST ((s == 0), "listener should not exist in local table");
detach_args.app_index = server_index;
s = session_lookup_listener (server_st_index, &server_sep);
SESSION_TEST ((s == 0), "listener should not exist in global table");
server_local_st_index = application_local_session_table (server);
- local_listener = session_lookup_session_endpoint (server_local_st_index,
- &server_sep);
+ local_listener =
+ session_lookup_local_session_endpoint (server_local_st_index,
+ &server_sep);
SESSION_TEST ((local_listener != SESSION_INVALID_INDEX),
"listener should exist in local table");
error = vnet_unbind (&unbind_args);
SESSION_TEST ((error == 0), "unbind should work");
- local_listener = session_lookup_session_endpoint (server_local_st_index,
- &server_sep);
+ local_listener =
+ session_lookup_local_session_endpoint (server_local_st_index,
+ &server_sep);
SESSION_TEST ((local_listener == SESSION_INVALID_INDEX),
"listener should not exist in local table");
SESSION_TEST ((s->app_index == server_index), "app_index should be that of "
"the server");
server_local_st_index = application_local_session_table (server);
- local_listener = session_lookup_session_endpoint (server_local_st_index,
- &server_sep);
+ local_listener =
+ session_lookup_local_session_endpoint (server_local_st_index,
+ &server_sep);
SESSION_TEST ((local_listener != SESSION_INVALID_INDEX),
"zero listener should exist in local table");
detach_args.app_index = server_index;
SESSION_STATE_CONNECTING,
SESSION_STATE_ACCEPTING,
SESSION_STATE_READY,
+ SESSION_STATE_CONNECTING_READY,
SESSION_STATE_CLOSED,
SESSION_STATE_N_STATES,
} stream_session_state_t;
--- /dev/null
+/*
+ * Copyright (c) 2017 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <vnet/session/transport_interface.h>
+#include <vnet/session/session.h>
+#include <vnet/fib/fib.h>
+
+/**
+ * Per-type vector of transport protocol virtual function tables
+ */
+transport_proto_vft_t *tp_vfts;
+
+/*
+ * Port allocator seed
+ */
+static u32 port_allocator_seed;
+
+/*
+ * Local endpoints table
+ */
+static transport_endpoint_table_t local_endpoints_table;
+
+/*
+ * Pool of local endpoints
+ */
+static transport_endpoint_t *local_endpoints;
+
+/*
+ * Local endpoints pool lock
+ */
+static clib_spinlock_t local_endpoints_lock;
+
+
+u32
+transport_endpoint_lookup (transport_endpoint_table_t * ht, u8 proto,
+ ip46_address_t * ip, u16 port)
+{
+ clib_bihash_kv_24_8_t kv;
+ int rv;
+
+ kv.key[0] = ip->as_u64[0];
+ kv.key[1] = ip->as_u64[1];
+ kv.key[2] = (u64) port << 8 | (u64) proto;
+
+ rv = clib_bihash_search_inline_24_8 (ht, &kv);
+ if (rv == 0)
+ return kv.value;
+
+ return ENDPOINT_INVALID_INDEX;
+}
+
+void
+transport_endpoint_table_add (transport_endpoint_table_t * ht, u8 proto,
+ transport_endpoint_t * te, u32 value)
+{
+ clib_bihash_kv_24_8_t kv;
+
+ kv.key[0] = te->ip.as_u64[0];
+ kv.key[1] = te->ip.as_u64[1];
+ kv.key[2] = (u64) te->port << 8 | (u64) proto;
+ kv.value = value;
+
+ clib_bihash_add_del_24_8 (ht, &kv, 1);
+}
+
+void
+transport_endpoint_table_del (transport_endpoint_table_t * ht, u8 proto,
+ transport_endpoint_t * te)
+{
+ clib_bihash_kv_24_8_t kv;
+
+ kv.key[0] = te->ip.as_u64[0];
+ kv.key[1] = te->ip.as_u64[1];
+ kv.key[2] = (u64) te->port << 8 | (u64) proto;
+
+ clib_bihash_add_del_24_8 (ht, &kv, 0);
+}
+
+/**
+ * Register transport virtual function table.
+ *
+ * @param type - session type (not protocol type)
+ * @param vft - virtual function table
+ */
+void
+transport_register_protocol (transport_proto_t transport_proto, u8 is_ip4,
+ const transport_proto_vft_t * vft)
+{
+ u8 session_type;
+ session_type = session_type_from_proto_and_ip (transport_proto, is_ip4);
+
+ vec_validate (tp_vfts, session_type);
+ tp_vfts[session_type] = *vft;
+
+ /* If an offset function is provided, then peek instead of dequeue */
+ session_manager_set_transport_rx_fn (session_type,
+ vft->tx_fifo_offset != 0);
+}
+
+/**
+ * Get transport virtual function table
+ *
+ * @param type - session type (not protocol type)
+ */
+transport_proto_vft_t *
+transport_protocol_get_vft (u8 session_type)
+{
+ if (session_type >= vec_len (tp_vfts))
+ return 0;
+ return &tp_vfts[session_type];
+}
+
+#define PORT_MASK ((1 << 16)- 1)
+
+void
+transport_endpoint_del (u32 tepi)
+{
+ clib_spinlock_lock_if_init (&local_endpoints_lock);
+ pool_put_index (local_endpoints, tepi);
+ clib_spinlock_unlock_if_init (&local_endpoints_lock);
+}
+
+always_inline transport_endpoint_t *
+transport_endpoint_new (void)
+{
+ transport_endpoint_t *tep;
+ pool_get (local_endpoints, tep);
+ return tep;
+}
+
+void
+transport_endpoint_cleanup (u8 proto, ip46_address_t * lcl_ip, u16 port)
+{
+ u32 tepi;
+ transport_endpoint_t *tep;
+
+ /* Cleanup local endpoint if this was an active connect */
+ tepi = transport_endpoint_lookup (&local_endpoints_table, proto, lcl_ip,
+ clib_net_to_host_u16 (port));
+ if (tepi != ENDPOINT_INVALID_INDEX)
+ {
+ tep = pool_elt_at_index (local_endpoints, tepi);
+ transport_endpoint_table_del (&local_endpoints_table, proto, tep);
+ transport_endpoint_del (tepi);
+ }
+}
+
+/**
+ * Allocate local port and add if successful add entry to local endpoint
+ * table to mark the pair as used.
+ */
+int
+transport_alloc_local_port (u8 proto, ip46_address_t * ip)
+{
+ transport_endpoint_t *tep;
+ u32 tei;
+ u16 min = 1024, max = 65535; /* XXX configurable ? */
+ int tries, limit;
+
+ limit = max - min;
+
+ /* Only support active opens from thread 0 */
+ ASSERT (vlib_get_thread_index () == 0);
+
+ /* Search for first free slot */
+ for (tries = 0; tries < limit; tries++)
+ {
+ u16 port = 0;
+
+ /* Find a port in the specified range */
+ while (1)
+ {
+ port = random_u32 (&port_allocator_seed) & PORT_MASK;
+ if (PREDICT_TRUE (port >= min && port < max))
+ break;
+ }
+
+ /* Look it up. If not found, we're done */
+ tei = transport_endpoint_lookup (&local_endpoints_table, proto, ip,
+ port);
+ if (tei == ENDPOINT_INVALID_INDEX)
+ {
+ clib_spinlock_lock_if_init (&local_endpoints_lock);
+ tep = transport_endpoint_new ();
+ clib_memcpy (&tep->ip, ip, sizeof (*ip));
+ tep->port = port;
+ transport_endpoint_table_add (&local_endpoints_table, proto, tep,
+ tep - local_endpoints);
+ clib_spinlock_unlock_if_init (&local_endpoints_lock);
+
+ return tep->port;
+ }
+ }
+ return -1;
+}
+
+int
+transport_alloc_local_endpoint (u8 proto, transport_endpoint_t * rmt,
+ ip46_address_t * lcl_addr, u16 * lcl_port)
+{
+ fib_prefix_t prefix;
+ fib_node_index_t fei;
+ u32 sw_if_index;
+ int port;
+
+ /*
+ * Find the local address and allocate port
+ */
+
+ /* Find a FIB path to the destination */
+ clib_memcpy (&prefix.fp_addr, &rmt->ip, sizeof (rmt->ip));
+ prefix.fp_proto = rmt->is_ip4 ? FIB_PROTOCOL_IP4 : FIB_PROTOCOL_IP6;
+ prefix.fp_len = rmt->is_ip4 ? 32 : 128;
+
+ ASSERT (rmt->fib_index != ENDPOINT_INVALID_INDEX);
+ fei = fib_table_lookup (rmt->fib_index, &prefix);
+
+ /* Couldn't find route to destination. Bail out. */
+ if (fei == FIB_NODE_INDEX_INVALID)
+ {
+ clib_warning ("no route to destination");
+ return -1;
+ }
+
+ sw_if_index = rmt->sw_if_index;
+ if (sw_if_index == ENDPOINT_INVALID_INDEX)
+ sw_if_index = fib_entry_get_resolving_interface (fei);
+
+ if (sw_if_index == ENDPOINT_INVALID_INDEX)
+ {
+ clib_warning ("no resolving interface for %U", format_ip46_address,
+ &rmt->ip, (rmt->is_ip4 == 0) + 1);
+ return -1;
+ }
+
+ memset (lcl_addr, 0, sizeof (*lcl_addr));
+
+ if (rmt->is_ip4)
+ {
+ ip4_address_t *ip4;
+ ip4 = ip_interface_get_first_ip (sw_if_index, 1);
+ lcl_addr->ip4.as_u32 = ip4->as_u32;
+ }
+ else
+ {
+ ip6_address_t *ip6;
+ ip6 = ip_interface_get_first_ip (sw_if_index, 0);
+ if (ip6 == 0)
+ {
+ clib_warning ("no routable ip6 addresses on %U",
+ format_vnet_sw_if_index_name, vnet_get_main (),
+ sw_if_index);
+ return -1;
+ }
+ clib_memcpy (&lcl_addr->ip6, ip6, sizeof (*ip6));
+ }
+
+ /* Allocate source port */
+ port = transport_alloc_local_port (proto, lcl_addr);
+ if (port < 1)
+ {
+ clib_warning ("Failed to allocate src port");
+ return -1;
+ }
+ *lcl_port = port;
+ return 0;
+}
+
+void
+transport_init (void)
+{
+ vlib_thread_main_t *vtm = vlib_get_thread_main ();
+ u32 local_endpoints_table_buckets = 250000;
+ u32 local_endpoints_table_memory = 512 << 20;
+ u32 num_threads;
+
+ /* Initialize [port-allocator] random number seed */
+ port_allocator_seed = (u32) clib_cpu_time_now ();
+
+ clib_bihash_init_24_8 (&local_endpoints_table, "local endpoints table",
+ local_endpoints_table_buckets,
+ local_endpoints_table_memory);
+ num_threads = 1 /* main thread */ + vtm->n_threads;
+ if (num_threads > 1)
+ clib_spinlock_init (&local_endpoints_lock);
+}
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
ip46_address_t lcl_ip; /**< Local IP */
u16 lcl_port; /**< Local port */
u16 rmt_port; /**< Remote port */
- u8 transport_proto; /**< Protocol id */
+ u8 proto; /**< Protocol id */
u8 is_ip4; /**< Flag if IP4 connection */
u32 fib_index; /**< Network namespace */
#define c_rmt_ip6 connection.rmt_ip.ip6
#define c_lcl_port connection.lcl_port
#define c_rmt_port connection.rmt_port
-#define c_transport_proto connection.transport_proto
+#define c_proto connection.proto
#define c_fib_index connection.fib_index
#define c_s_index connection.s_index
#define c_c_index connection.c_index
typedef enum _transport_proto
{
TRANSPORT_PROTO_TCP,
- TRANSPORT_PROTO_UDP
+ TRANSPORT_PROTO_UDP,
+ TRANSPORT_N_PROTO
} transport_proto_t;
#define foreach_transport_connection_fields \
#undef _
} transport_endpoint_t;
+typedef clib_bihash_24_8_t transport_endpoint_table_t;
+
#define ENDPOINT_INVALID_INDEX ((u32)~0)
always_inline u8
return tc->is_ip4 ? FIB_PROTOCOL_IP4 : FIB_PROTOCOL_IP6;
}
+always_inline u8
+transport_endpoint_fib_proto (transport_endpoint_t * tep)
+{
+ return tep->is_ip4 ? FIB_PROTOCOL_IP4 : FIB_PROTOCOL_IP6;
+}
+
+always_inline u8
+transport_is_stream (u8 proto)
+{
+ return (proto == TRANSPORT_PROTO_TCP);
+}
+
+always_inline u8
+transport_is_dgram (u8 proto)
+{
+ return (proto == TRANSPORT_PROTO_UDP);
+}
+
+int transport_alloc_local_port (u8 proto, ip46_address_t * ip);
+int transport_alloc_local_endpoint (u8 proto, transport_endpoint_t * rmt,
+ ip46_address_t * lcl_addr,
+ u16 * lcl_port);
+void transport_endpoint_cleanup (u8 proto, ip46_address_t * lcl_ip, u16 port);
+void transport_init (void);
+
#endif /* VNET_VNET_URI_TRANSPORT_H_ */
/*
+++ /dev/null
-/*
- * Copyright (c) 2017 Cisco and/or its affiliates.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <vnet/session/transport_interface.h>
-#include <vnet/session/session.h>
-
-/**
- * Per-type vector of transport protocol virtual function tables
- */
-transport_proto_vft_t *tp_vfts;
-
-u32
-transport_endpoint_lookup (transport_endpoint_table_t * ht,
- ip46_address_t * ip, u16 port)
-{
- clib_bihash_kv_24_8_t kv;
- int rv;
-
- kv.key[0] = ip->as_u64[0];
- kv.key[1] = ip->as_u64[1];
- kv.key[2] = port;
-
- rv = clib_bihash_search_inline_24_8 (ht, &kv);
- if (rv == 0)
- return kv.value;
-
- return TRANSPORT_ENDPOINT_INVALID_INDEX;
-}
-
-void
-transport_endpoint_table_add (transport_endpoint_table_t * ht,
- transport_endpoint_t * te, u32 value)
-{
- clib_bihash_kv_24_8_t kv;
-
- kv.key[0] = te->ip.as_u64[0];
- kv.key[1] = te->ip.as_u64[1];
- kv.key[2] = te->port;
- kv.value = value;
-
- clib_bihash_add_del_24_8 (ht, &kv, 1);
-}
-
-void
-transport_endpoint_table_del (transport_endpoint_table_t * ht,
- transport_endpoint_t * te)
-{
- clib_bihash_kv_24_8_t kv;
-
- kv.key[0] = te->ip.as_u64[0];
- kv.key[1] = te->ip.as_u64[1];
- kv.key[2] = te->port;
-
- clib_bihash_add_del_24_8 (ht, &kv, 0);
-}
-
-/**
- * Register transport virtual function table.
- *
- * @param type - session type (not protocol type)
- * @param vft - virtual function table
- */
-void
-session_register_transport (transport_proto_t transport_proto, u8 is_ip4,
- const transport_proto_vft_t * vft)
-{
- u8 session_type;
- session_type = session_type_from_proto_and_ip (transport_proto, is_ip4);
-
- vec_validate (tp_vfts, session_type);
- tp_vfts[session_type] = *vft;
-
- /* If an offset function is provided, then peek instead of dequeue */
- session_manager_set_transport_rx_fn (session_type,
- vft->tx_fifo_offset != 0);
-}
-
-/**
- * Get transport virtual function table
- *
- * @param type - session type (not protocol type)
- */
-transport_proto_vft_t *
-session_get_transport_vft (u8 session_type)
-{
- if (session_type >= vec_len (tp_vfts))
- return 0;
- return &tp_vfts[session_type];
-}
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
u8 *(*format_half_open) (u8 * s, va_list * args);
} transport_proto_vft_t;
-typedef clib_bihash_24_8_t transport_endpoint_table_t;
-
-#define TRANSPORT_ENDPOINT_INVALID_INDEX ((u32)~0)
-
-u32 transport_endpoint_lookup (transport_endpoint_table_t * ht,
- ip46_address_t * ip, u16 port);
-void transport_endpoint_table_add (transport_endpoint_table_t * ht,
- transport_endpoint_t * te, u32 value);
-void transport_endpoint_table_del (transport_endpoint_table_t * ht,
- transport_endpoint_t * te);
-
-void session_register_transport (transport_proto_t transport_proto, u8 is_ip4,
- const transport_proto_vft_t * vft);
-transport_proto_vft_t *session_get_transport_vft (u8 session_type);
+void transport_register_protocol (transport_proto_t transport_proto,
+ u8 is_ip4,
+ const transport_proto_vft_t * vft);
+transport_proto_vft_t *transport_protocol_get_vft (u8 session_type);
#endif /* SRC_VNET_SESSION_TRANSPORT_INTERFACE_H_ */
int test_buf_offset;
u32 bytes_this_chunk;
session_fifo_event_t evt;
- static int serial_number = 0;
svm_fifo_t *txf;
int rv;
/* Fabricate TX event, send to vpp */
evt.fifo = txf;
evt.event_type = FIFO_EVENT_APP_TX;
- evt.event_id = serial_number++;
if (unix_shared_memory_queue_add
(tm->vpp_event_queue[txf->master_thread_index], (u8 *) & evt,
session_parse_handle (sp->vpp_session_handle,
&index, &thread_index);
- s = stream_session_get_if_valid (index, thread_index);
+ s = session_get_if_valid (index, thread_index);
if (s)
{
vnet_disconnect_args_t _a, *a = &_a;
- a->handle = stream_session_handle (s);
+ a->handle = session_handle (s);
a->app_index = tm->app_index;
vnet_disconnect_session (a);
session->server_rx_fifo->client_session_index = session_index;
session->server_tx_fifo = s->server_tx_fifo;
session->server_tx_fifo->client_session_index = session_index;
- session->vpp_session_handle = stream_session_handle (s);
+ session->vpp_session_handle = session_handle (s);
vec_add1 (tm->connection_index_by_thread[thread_index], session_index);
__sync_fetch_and_add (&tm->ready_connections, 1);
{
tclient_main_t *tm = &tclient_main;
vnet_disconnect_args_t _a, *a = &_a;
- a->handle = stream_session_handle (s);
+ a->handle = session_handle (s);
a->app_index = tm->app_index;
vnet_disconnect_session (a);
return;
/* Fabricate TX event, send to vpp */
evt.fifo = s->server_tx_fifo;
evt.event_type = FIFO_EVENT_APP_TX;
- evt.event_id = 0;
unix_shared_memory_queue_add (hsm->vpp_queue[s->thread_index],
(u8 *) & evt,
/* send the command to a new/recycled vlib process */
args = clib_mem_alloc (sizeof (*args));
args->data = vec_dup (hsm->rx_buf);
- args->session_handle = stream_session_handle (s);
+ args->session_handle = session_handle (s);
/* Send an RPC request via the thread-0 input node */
if (vlib_get_thread_index () != 0)
http_server_main_t *bsm = &http_server_main;
vnet_disconnect_args_t _a, *a = &_a;
- a->handle = stream_session_handle (s);
+ a->handle = session_handle (s);
a->app_index = bsm->app_index;
vnet_disconnect_session (a);
}
uword *p;
u64 handle;
- handle = stream_session_handle (s);
+ handle = session_handle (s);
clib_spinlock_lock_if_init (&bpm->sessions_lock);
if (is_active_open)
if (active_open_session)
{
- a->handle = stream_session_handle (active_open_session);
+ a->handle = session_handle (active_open_session);
a->app_index = bpm->active_open_app_index;
hash_unset (bpm->proxy_session_by_active_open_handle,
- stream_session_handle (active_open_session));
+ session_handle (active_open_session));
vnet_disconnect_session (a);
}
if (server_session)
{
- a->handle = stream_session_handle (server_session);
+ a->handle = session_handle (server_session);
a->app_index = bpm->server_app_index;
hash_unset (bpm->proxy_session_by_server_handle,
- stream_session_handle (server_session));
+ session_handle (server_session));
vnet_disconnect_session (a);
}
}
ASSERT (s->thread_index == thread_index);
clib_spinlock_lock_if_init (&bpm->sessions_lock);
- p =
- hash_get (bpm->proxy_session_by_server_handle, stream_session_handle (s));
+ p = hash_get (bpm->proxy_session_by_server_handle, session_handle (s));
if (PREDICT_TRUE (p != 0))
{
memset (ps, 0, sizeof (*ps));
ps->server_rx_fifo = rx_fifo;
ps->server_tx_fifo = tx_fifo;
- ps->vpp_server_handle = stream_session_handle (s);
+ ps->vpp_server_handle = session_handle (s);
proxy_index = ps - bpm->sessions;
clib_spinlock_lock_if_init (&bpm->sessions_lock);
ps = pool_elt_at_index (bpm->sessions, opaque);
- ps->vpp_active_open_handle = stream_session_handle (s);
+ ps->vpp_active_open_handle = session_handle (s);
s->server_tx_fifo = ps->server_rx_fifo;
s->server_rx_fifo = ps->server_tx_fifo;
builtin_server_main_t *bsm = &builtin_server_main;
vnet_disconnect_args_t _a, *a = &_a;
- a->handle = stream_session_handle (s);
+ a->handle = session_handle (s);
a->app_index = bsm->app_index;
vnet_disconnect_session (a);
}
svm_fifo_t *tx_fifo, *rx_fifo;
builtin_server_main_t *bsm = &builtin_server_main;
session_fifo_event_t evt;
- static int serial_number = 0;
u32 thread_index = vlib_get_thread_index ();
ASSERT (s->thread_index == thread_index);
unix_shared_memory_queue_t *q;
evt.fifo = rx_fifo;
evt.event_type = FIFO_EVENT_BUILTIN_RX;
- evt.event_id = 0;
q = bsm->vpp_queue[thread_index];
if (PREDICT_FALSE (q->cursize == q->maxsize))
/* Fabricate TX event, send to vpp */
evt.fifo = tx_fifo;
evt.event_type = FIFO_EVENT_APP_TX;
- evt.event_id = serial_number++;
if (unix_shared_memory_queue_add (bsm->vpp_queue[s->thread_index],
(u8 *) & evt,
tcp_main_t tcp_main;
-void *
-ip_interface_get_first_ip (u32 sw_if_index, u8 is_ip4)
-{
- ip_lookup_main_t *lm4 = &ip4_main.lookup_main;
- ip_lookup_main_t *lm6 = &ip6_main.lookup_main;
- ip_interface_address_t *ia = 0;
-
- if (is_ip4)
- {
- /* *INDENT-OFF* */
- foreach_ip_interface_address (lm4, ia, sw_if_index, 1 /* unnumbered */ ,
- ({
- return ip_interface_address_get_address (lm4, ia);
- }));
- /* *INDENT-ON* */
- }
- else
- {
- /* *INDENT-OFF* */
- foreach_ip_interface_address (lm6, ia, sw_if_index, 1 /* unnumbered */ ,
- ({
- ip6_address_t *rv;
- rv = ip_interface_address_get_address (lm6, ia);
- /* Trying to use a link-local ip6 src address is a fool's errand */
- if (!ip6_address_is_link_local_unicast (rv))
- return rv;
- }));
- /* *INDENT-ON* */
- }
-
- return 0;
-}
-
static u32
tcp_connection_bind (u32 session_index, transport_endpoint_t * lcl)
{
}
ip_copy (&listener->c_lcl_ip, &lcl->ip, lcl->is_ip4);
listener->c_is_ip4 = lcl->is_ip4;
- listener->c_transport_proto = TRANSPORT_PROTO_TCP;
+ listener->c_proto = TRANSPORT_PROTO_TCP;
listener->c_s_index = session_index;
listener->c_fib_index = lcl->fib_index;
listener->state = TCP_STATE_LISTEN;
return &tc->connection;
}
-always_inline void
-transport_endpoint_del (u32 tepi)
-{
- tcp_main_t *tm = vnet_get_tcp_main ();
- clib_spinlock_lock_if_init (&tm->local_endpoints_lock);
- pool_put_index (tm->local_endpoints, tepi);
- clib_spinlock_unlock_if_init (&tm->local_endpoints_lock);
-}
-
-always_inline transport_endpoint_t *
-transport_endpoint_new (void)
-{
- tcp_main_t *tm = vnet_get_tcp_main ();
- transport_endpoint_t *tep;
- pool_get (tm->local_endpoints, tep);
- return tep;
-}
-
/**
* Cleanup half-open connection
*
tcp_connection_cleanup (tcp_connection_t * tc)
{
tcp_main_t *tm = &tcp_main;
- u32 tepi;
- transport_endpoint_t *tep;
/* Cleanup local endpoint if this was an active connect */
- tepi = transport_endpoint_lookup (&tm->local_endpoints_table, &tc->c_lcl_ip,
- clib_net_to_host_u16 (tc->c_lcl_port));
- if (tepi != TRANSPORT_ENDPOINT_INVALID_INDEX)
- {
- tep = pool_elt_at_index (tm->local_endpoints, tepi);
- transport_endpoint_table_del (&tm->local_endpoints_table, tep);
- transport_endpoint_del (tepi);
- }
+ transport_endpoint_cleanup (TRANSPORT_PROTO_TCP, &tc->c_lcl_ip,
+ tc->c_lcl_port);
/* Check if connection is not yet fully established */
if (tc->state == TCP_STATE_SYN_SENT)
tcp_connection_cleanup (tc);
break;
case TCP_STATE_SYN_SENT:
- stream_session_connect_notify (&tc->connection, 1 /* fail */ );
+ session_stream_connect_notify (&tc->connection, 1 /* fail */ );
tcp_connection_cleanup (tc);
break;
case TCP_STATE_ESTABLISHED:
tcp_timer_update (tc, TCP_TIMER_WAITCLOSE, TCP_CLEANUP_TIME);
}
-#define PORT_MASK ((1 << 16)- 1)
-/**
- * Allocate local port and add if successful add entry to local endpoint
- * table to mark the pair as used.
- */
-int
-tcp_allocate_local_port (ip46_address_t * ip)
-{
- tcp_main_t *tm = vnet_get_tcp_main ();
- transport_endpoint_t *tep;
- u32 tei;
- u16 min = 1024, max = 65535; /* XXX configurable ? */
- int tries, limit;
-
- limit = max - min;
-
- /* Only support active opens from thread 0 */
- ASSERT (vlib_get_thread_index () == 0);
-
- /* Search for first free slot */
- for (tries = 0; tries < limit; tries++)
- {
- u16 port = 0;
-
- /* Find a port in the specified range */
- while (1)
- {
- port = random_u32 (&tm->port_allocator_seed) & PORT_MASK;
- if (PREDICT_TRUE (port >= min && port < max))
- break;
- }
-
- /* Look it up */
- tei = transport_endpoint_lookup (&tm->local_endpoints_table, ip, port);
- /* If not found, we're done */
- if (tei == TRANSPORT_ENDPOINT_INVALID_INDEX)
- {
- clib_spinlock_lock_if_init (&tm->local_endpoints_lock);
- tep = transport_endpoint_new ();
- clib_memcpy (&tep->ip, ip, sizeof (*ip));
- tep->port = port;
- transport_endpoint_table_add (&tm->local_endpoints_table, tep,
- tep - tm->local_endpoints);
- clib_spinlock_unlock_if_init (&tm->local_endpoints_lock);
-
- return tep->port;
- }
- }
- return -1;
-}
-
/**
* Initialize all connection timers as invalid
*/
{
u32 time_now;
- /* Set random initial sequence */
- tcp_set_time_now (0);
+ /*
+ * We use the time to randomize iss and for setting up the initial
+ * timestamp. Make sure it's updated otherwise syn and ack in the
+ * handshake may make it look as if time has flown in the opposite
+ * direction for us.
+ */
+ tcp_set_time_now (vlib_get_thread_index ());
time_now = tcp_time_now ();
+
tc->iss = random_u32 (&time_now);
tc->snd_una = tc->iss;
tc->snd_nxt = tc->iss + 1;
// tcp_connection_fib_attach (tc);
}
+static int
+tcp_alloc_custom_local_endpoint (tcp_main_t * tm, ip46_address_t * lcl_addr,
+ u16 * lcl_port, u8 is_ip4)
+{
+ int index, port;
+ if (is_ip4)
+ {
+ index = tm->last_v4_address_rotor++;
+ if (tm->last_v4_address_rotor >= vec_len (tm->ip4_src_addresses))
+ tm->last_v4_address_rotor = 0;
+ lcl_addr->ip4.as_u32 = tm->ip4_src_addresses[index].as_u32;
+ }
+ else
+ {
+ index = tm->last_v6_address_rotor++;
+ if (tm->last_v6_address_rotor >= vec_len (tm->ip6_src_addresses))
+ tm->last_v6_address_rotor = 0;
+ clib_memcpy (&lcl_addr->ip6, &tm->ip6_src_addresses[index],
+ sizeof (ip6_address_t));
+ }
+ port = transport_alloc_local_port (TRANSPORT_PROTO_TCP, lcl_addr);
+ if (port < 1)
+ {
+ clib_warning ("Failed to allocate src port");
+ return -1;
+ }
+ *lcl_port = port;
+ return 0;
+}
+
int
tcp_connection_open (transport_endpoint_t * rmt)
{
tcp_main_t *tm = vnet_get_tcp_main ();
tcp_connection_t *tc;
- fib_prefix_t prefix;
- fib_node_index_t fei;
- u32 sw_if_index;
ip46_address_t lcl_addr;
- int lcl_port;
+ u16 lcl_port;
+ int rv;
/*
- * Find the local address and allocate port
+ * Allocate local endpoint
*/
- memset (&lcl_addr, 0, sizeof (lcl_addr));
-
- /* Find a FIB path to the destination */
- clib_memcpy (&prefix.fp_addr, &rmt->ip, sizeof (rmt->ip));
- prefix.fp_proto = rmt->is_ip4 ? FIB_PROTOCOL_IP4 : FIB_PROTOCOL_IP6;
- prefix.fp_len = rmt->is_ip4 ? 32 : 128;
-
- ASSERT (rmt->fib_index != ENDPOINT_INVALID_INDEX);
- fei = fib_table_lookup (rmt->fib_index, &prefix);
-
- /* Couldn't find route to destination. Bail out. */
- if (fei == FIB_NODE_INDEX_INVALID)
- {
- clib_warning ("no route to destination");
- return -1;
- }
-
- sw_if_index = rmt->sw_if_index;
- if (sw_if_index == ENDPOINT_INVALID_INDEX)
- sw_if_index = fib_entry_get_resolving_interface (fei);
-
- if (sw_if_index == ENDPOINT_INVALID_INDEX)
- {
- clib_warning ("no resolving interface for %U", format_ip46_address,
- &rmt->ip, (rmt->is_ip4 == 0) + 1);
- return -1;
- }
-
- if (rmt->is_ip4)
- {
- ip4_address_t *ip4;
- int index;
- if (vec_len (tm->ip4_src_addresses))
- {
- index = tm->last_v4_address_rotor++;
- if (tm->last_v4_address_rotor >= vec_len (tm->ip4_src_addresses))
- tm->last_v4_address_rotor = 0;
- lcl_addr.ip4.as_u32 = tm->ip4_src_addresses[index].as_u32;
- }
- else
- {
- ip4 = ip_interface_get_first_ip (sw_if_index, 1);
- lcl_addr.ip4.as_u32 = ip4->as_u32;
- }
- }
+ if ((rmt->is_ip4 && vec_len (tm->ip4_src_addresses))
+ || (!rmt->is_ip4 && vec_len (tm->ip6_src_addresses)))
+ rv = tcp_alloc_custom_local_endpoint (tm, &lcl_addr, &lcl_port,
+ rmt->is_ip4);
else
- {
- ip6_address_t *ip6;
- int index;
-
- if (vec_len (tm->ip6_src_addresses))
- {
- index = tm->last_v6_address_rotor++;
- if (tm->last_v6_address_rotor >= vec_len (tm->ip6_src_addresses))
- tm->last_v6_address_rotor = 0;
- clib_memcpy (&lcl_addr.ip6, &tm->ip6_src_addresses[index],
- sizeof (*ip6));
- }
- else
- {
- ip6 = ip_interface_get_first_ip (sw_if_index, 0);
- if (ip6 == 0)
- {
- clib_warning ("no routable ip6 addresses on %U",
- format_vnet_sw_if_index_name, vnet_get_main (),
- sw_if_index);
- return -1;
- }
-
- clib_memcpy (&lcl_addr.ip6, ip6, sizeof (*ip6));
- }
- }
+ rv = transport_alloc_local_endpoint (TRANSPORT_PROTO_TCP,
+ rmt, &lcl_addr, &lcl_port);
- /* Allocate source port */
- lcl_port = tcp_allocate_local_port (&lcl_addr);
- if (lcl_port < 1)
- {
- clib_warning ("Failed to allocate src port");
- return -1;
- }
+ if (rv)
+ return -1;
/*
* Create connection and send SYN
*/
clib_spinlock_lock_if_init (&tm->half_open_lock);
tc = tcp_half_open_connection_new ();
- clib_memcpy (&tc->c_rmt_ip, &rmt->ip, sizeof (ip46_address_t));
- clib_memcpy (&tc->c_lcl_ip, &lcl_addr, sizeof (ip46_address_t));
+ ip_copy (&tc->c_rmt_ip, &rmt->ip, rmt->is_ip4);
+ ip_copy (&tc->c_lcl_ip, &lcl_addr, rmt->is_ip4);
tc->c_rmt_port = rmt->port;
tc->c_lcl_port = clib_host_to_net_u16 (lcl_port);
tc->c_is_ip4 = rmt->is_ip4;
- tc->c_transport_proto = TRANSPORT_PROTO_TCP;
+ tc->c_proto = TRANSPORT_PROTO_TCP;
tc->c_fib_index = rmt->fib_index;
/* The other connection vars will be initialized after SYN ACK */
tcp_connection_timers_init (tc);
if (tc)
{
ASSERT (tc->state == TCP_STATE_SYN_SENT);
- stream_session_connect_notify (&tc->connection, 1 /* fail */ );
+ session_stream_connect_notify (&tc->connection, 1 /* fail */ );
TCP_DBG ("establish pop: %U", format_tcp_connection, tc, 2);
}
else
ip6_register_protocol (IP_PROTOCOL_TCP, tcp6_input_node.index);
/* Register as transport with session layer */
- session_register_transport (TRANSPORT_PROTO_TCP, 1, &tcp_proto);
- session_register_transport (TRANSPORT_PROTO_TCP, 0, &tcp_proto);
+ transport_register_protocol (TRANSPORT_PROTO_TCP, 1, &tcp_proto);
+ transport_register_protocol (TRANSPORT_PROTO_TCP, 0, &tcp_proto);
/*
* Initialize data structures
tm->tstamp_ticks_per_clock = vm->clib_time.seconds_per_clock
/ TCP_TSTAMP_RESOLUTION;
- if (tm->local_endpoints_table_buckets == 0)
- tm->local_endpoints_table_buckets = 250000;
- if (tm->local_endpoints_table_memory == 0)
- tm->local_endpoints_table_memory = 512 << 20;
-
- clib_bihash_init_24_8 (&tm->local_endpoints_table, "local endpoint table",
- tm->local_endpoints_table_buckets,
- tm->local_endpoints_table_memory);
-
- /* Initialize [port-allocator] random number seed */
- tm->port_allocator_seed = (u32) clib_cpu_time_now ();
-
if (num_threads > 1)
{
clib_spinlock_init (&tm->half_open_lock);
- clib_spinlock_init (&tm->local_endpoints_lock);
}
vec_validate (tm->tx_frames[0], num_threads - 1);
tcp_connection_t *half_open_connections;
clib_spinlock_t half_open_lock;
- /* Pool of local TCP endpoints */
- transport_endpoint_t *local_endpoints;
-
- /* Local endpoints lookup table */
- transport_endpoint_table_t local_endpoints_table;
- clib_spinlock_t local_endpoints_lock;
-
/* Congestion control algorithms registered */
tcp_cc_algorithm_t *cc_algos;
u32 last_v6_address_rotor;
ip6_address_t *ip6_src_addresses;
- /** Port allocator random number generator seed */
- u32 port_allocator_seed;
-
/** vlib buffer size */
u32 bytes_per_buffer;
return TCP_ERROR_PURE_ACK;
}
- written = stream_session_enqueue_data (&tc->connection, b, 0,
- 1 /* queue event */ , 1);
+ written = session_enqueue_stream_connection (&tc->connection, b, 0,
+ 1 /* queue event */ , 1);
TCP_EVT_DBG (TCP_EVT_INPUT, tc, 0, data_len, written);
}
/* Enqueue out-of-order data with relative offset */
- rv = stream_session_enqueue_data (&tc->connection, b,
- vnet_buffer (b)->tcp.seq_number -
- tc->rcv_nxt, 0 /* queue event */ , 0);
+ rv = session_enqueue_stream_connection (&tc->connection, b,
+ vnet_buffer (b)->tcp.seq_number -
+ tc->rcv_nxt, 0 /* queue event */ ,
+ 0);
/* Nothing written */
if (rv)
}
always_inline void
-tcp_established_inc_counter (vlib_main_t * vm, u8 is_ip4, u8 evt, u8 val)
+tcp_node_inc_counter (vlib_main_t * vm, u32 tcp4_node, u32 tcp6_node,
+ u8 is_ip4, u8 evt, u8 val)
{
if (PREDICT_TRUE (!val))
return;
if (is_ip4)
- vlib_node_increment_counter (vm, tcp4_established_node.index, evt, val);
+ vlib_node_increment_counter (vm, tcp4_node, evt, val);
else
- vlib_node_increment_counter (vm, tcp6_established_node.index, evt, val);
+ vlib_node_increment_counter (vm, tcp6_node, evt, val);
}
always_inline uword
vlib_put_next_frame (vm, node, next_index, n_left_to_next);
}
- errors = session_manager_flush_enqueue_events (my_thread_index);
- tcp_established_inc_counter (vm, is_ip4, TCP_ERROR_EVENT_FIFO_FULL, errors);
+ errors = session_manager_flush_enqueue_events (TRANSPORT_PROTO_TCP,
+ my_thread_index);
+ tcp_node_inc_counter (vm, is_ip4, tcp4_established_node.index,
+ tcp6_established_node.index,
+ TCP_ERROR_EVENT_FIFO_FULL, errors);
tcp_flush_frame_to_output (vm, my_thread_index, is_ip4);
return from_frame->n_vectors;
{
handle = session_lookup_half_open_handle (&tc->connection);
tmp = session_lookup_half_open_connection (handle & 0xFFFFFFFF,
- tc->c_transport_proto,
- tc->c_is_ip4);
+ tc->c_proto, tc->c_is_ip4);
if (tmp)
{
/* Notify app that we have connection. If session layer can't
* allocate session send reset */
- if (stream_session_connect_notify (&new_tc0->connection, 0))
+ if (session_stream_connect_notify (&new_tc0->connection, 0))
{
clib_warning ("connect notify fail");
tcp_send_reset_w_pkt (new_tc0, b0, is_ip4);
new_tc0->state = TCP_STATE_SYN_RCVD;
/* Notify app that we have connection */
- if (stream_session_connect_notify (&new_tc0->connection, 0))
+ if (session_stream_connect_notify (&new_tc0->connection, 0))
{
tcp_connection_cleanup (new_tc0);
tcp_send_reset_w_pkt (tc0, b0, is_ip4);
vlib_put_next_frame (vm, node, next_index, n_left_to_next);
}
- errors = session_manager_flush_enqueue_events (my_thread_index);
- if (errors)
- {
- if (is_ip4)
- vlib_node_increment_counter (vm, tcp4_established_node.index,
- TCP_ERROR_EVENT_FIFO_FULL, errors);
- else
- vlib_node_increment_counter (vm, tcp6_established_node.index,
- TCP_ERROR_EVENT_FIFO_FULL, errors);
- }
-
+ errors = session_manager_flush_enqueue_events (TRANSPORT_PROTO_TCP,
+ my_thread_index);
+ tcp_node_inc_counter (vm, is_ip4, tcp4_syn_sent_node.index,
+ tcp6_syn_sent_node.index,
+ TCP_ERROR_EVENT_FIFO_FULL, errors);
return from_frame->n_vectors;
}
VLIB_NODE_FUNCTION_MULTIARCH (tcp6_syn_sent_node, tcp6_syn_sent_rcv);
+vlib_node_registration_t tcp4_rcv_process_node;
+vlib_node_registration_t tcp6_rcv_process_node;
+
/**
* Handles reception for all states except LISTEN, SYN-SENT and ESTABLISHED
* as per RFC793 p. 64
vlib_put_next_frame (vm, node, next_index, n_left_to_next);
}
- errors = session_manager_flush_enqueue_events (my_thread_index);
- if (errors)
- {
- if (is_ip4)
- vlib_node_increment_counter (vm, tcp4_established_node.index,
- TCP_ERROR_EVENT_FIFO_FULL, errors);
- else
- vlib_node_increment_counter (vm, tcp6_established_node.index,
- TCP_ERROR_EVENT_FIFO_FULL, errors);
- }
+ errors = session_manager_flush_enqueue_events (TRANSPORT_PROTO_TCP,
+ my_thread_index);
+ tcp_node_inc_counter (vm, is_ip4, tcp4_rcv_process_node.index,
+ tcp6_rcv_process_node.index,
+ TCP_ERROR_EVENT_FIFO_FULL, errors);
return from_frame->n_vectors;
}
+ tcp_header_bytes (tcp0));
n_data_bytes0 = clib_net_to_host_u16 (ip40->length)
- n_advance_bytes0;
- tconn =
- session_lookup_connection_wt4 (fib_index0, &ip40->dst_address,
- &ip40->src_address,
- tcp0->dst_port, tcp0->src_port,
- TRANSPORT_PROTO_TCP,
- my_thread_index);
+ tconn = session_lookup_connection_wt4 (fib_index0,
+ &ip40->dst_address,
+ &ip40->src_address,
+ tcp0->dst_port,
+ tcp0->src_port,
+ TRANSPORT_PROTO_TCP,
+ my_thread_index);
tc0 = tcp_get_connection_from_transport (tconn);
ASSERT (tcp_lookup_is_valid (tc0, tcp0));
}
n_data_bytes0 = clib_net_to_host_u16 (ip60->payload_length)
- n_advance_bytes0;
n_advance_bytes0 += sizeof (ip60[0]);
- tconn =
- session_lookup_connection_wt6 (fib_index0, &ip60->dst_address,
- &ip60->src_address,
- tcp0->dst_port, tcp0->src_port,
- TRANSPORT_PROTO_TCP,
- my_thread_index);
+ tconn = session_lookup_connection_wt6 (fib_index0,
+ &ip60->dst_address,
+ &ip60->src_address,
+ tcp0->dst_port,
+ tcp0->src_port,
+ TRANSPORT_PROTO_TCP,
+ my_thread_index);
tc0 = tcp_get_connection_from_transport (tconn);
ASSERT (tcp_lookup_is_valid (tc0, tcp0));
}
tc->connection.rmt_ip.ip4.as_u32 = clib_host_to_net_u32 (0x06000103);
tc->connection.lcl_port = 35051;
tc->connection.rmt_port = 53764;
- tc->connection.transport_proto = 0;
+ tc->connection.proto = 0;
clib_memcpy (tc1, &tc->connection, sizeof (*tc1));
pool_get (session_manager_main.sessions[0], s);
tc->connection.rmt_ip.ip4.as_u32 = clib_host_to_net_u32 (0x06000102);
tc->connection.lcl_port = 38225;
tc->connection.rmt_port = 53764;
- tc->connection.transport_proto = 0;
+ tc->connection.proto = 0;
clib_memcpy (tc2, &tc->connection, sizeof (*tc2));
/*
tconn = session_lookup_connection_wt4 (0, &tc1->lcl_ip.ip4,
&tc1->rmt_ip.ip4,
tc1->lcl_port, tc1->rmt_port,
- tc1->transport_proto, 0);
+ tc1->proto, 0);
cmp = (memcmp (&tconn->rmt_ip, &tc1->rmt_ip, sizeof (tc1->rmt_ip)) == 0);
TCP_TEST ((cmp), "rmt ip is identical %d", cmp);
TCP_TEST ((tconn->lcl_port == tc1->lcl_port),
tconn = session_lookup_connection_wt4 (0, &tc2->lcl_ip.ip4,
&tc2->rmt_ip.ip4,
tc2->lcl_port, tc2->rmt_port,
- tc2->transport_proto, 0);
+ tc2->proto, 0);
TCP_TEST ((tconn == 0), "lookup result should be null");
/*
tconn = session_lookup_connection_wt4 (0, &tc1->lcl_ip.ip4,
&tc1->rmt_ip.ip4,
tc1->lcl_port, tc1->rmt_port,
- tc1->transport_proto, 0);
+ tc1->proto, 0);
TCP_TEST ((tconn == 0), "lookup result should be null");
tconn = session_lookup_connection_wt4 (0, &tc2->lcl_ip.ip4,
&tc2->rmt_ip.ip4,
tc2->lcl_port, tc2->rmt_port,
- tc2->transport_proto, 0);
+ tc2->proto, 0);
TCP_TEST ((tconn == 0), "lookup result should be null");
/*
tconn = session_lookup_connection_wt4 (0, &tc2->lcl_ip.ip4,
&tc2->rmt_ip.ip4,
tc2->lcl_port, tc2->rmt_port,
- tc2->transport_proto, 0);
+ tc2->proto, 0);
TCP_TEST ((tconn == 0), "lookup result should be null");
return 0;
/* Fabricate TX event, send to ourselves */
evt.fifo = tx_fifo;
evt.event_type = FIFO_EVENT_APP_TX;
- evt.event_id = 0;
q = session_manager_get_vpp_event_queue (s->thread_index);
unix_shared_memory_queue_add (q, (u8 *) & evt,
0 /* do wait for mutex */ );
#include <vnet/dpo/load_balance.h>
#include <vnet/fib/ip4_fib.h>
-udp_uri_main_t udp_uri_main;
-
-u32
-udp_session_bind_ip4 (u32 session_index, transport_endpoint_t * lcl)
+udp_connection_t *
+udp_connection_alloc (u32 thread_index)
{
- udp_uri_main_t *um = vnet_get_udp_main ();
- udp_connection_t *listener;
+ udp_main_t *um = &udp_main;
+ udp_connection_t *uc;
+ u32 will_expand = 0;
+ pool_get_aligned_will_expand (um->connections[thread_index], will_expand,
+ CLIB_CACHE_LINE_BYTES);
- pool_get (um->udp_listeners, listener);
- memset (listener, 0, sizeof (udp_connection_t));
- listener->c_lcl_port = lcl->port;
- listener->c_lcl_ip4.as_u32 = lcl->ip.ip4.as_u32;
- listener->c_transport_proto = TRANSPORT_PROTO_UDP;
- udp_register_dst_port (um->vlib_main, clib_net_to_host_u16 (lcl->port),
- udp4_uri_input_node.index, 1 /* is_ipv4 */ );
- return 0;
+ if (PREDICT_FALSE (will_expand))
+ {
+ clib_spinlock_lock_if_init (&udp_main.peekers_write_locks
+ [thread_index]);
+ pool_get_aligned (udp_main.connections[thread_index], uc,
+ CLIB_CACHE_LINE_BYTES);
+ clib_spinlock_unlock_if_init (&udp_main.peekers_write_locks
+ [thread_index]);
+ }
+ else
+ {
+ pool_get_aligned (um->connections[thread_index], uc,
+ CLIB_CACHE_LINE_BYTES);
+ }
+ memset (uc, 0, sizeof (*uc));
+ uc->c_c_index = uc - um->connections[thread_index];
+ uc->c_thread_index = thread_index;
+ uc->c_proto = TRANSPORT_PROTO_UDP;
+ return uc;
}
-u32
-udp_session_bind_ip6 (u32 session_index, transport_endpoint_t * lcl)
+void
+udp_connection_free (udp_connection_t * uc)
{
- udp_uri_main_t *um = vnet_get_udp_main ();
- udp_connection_t *listener;
-
- pool_get (um->udp_listeners, listener);
- listener->c_lcl_port = lcl->port;
- clib_memcpy (&listener->c_lcl_ip6, &lcl->ip.ip6, sizeof (ip6_address_t));
- listener->c_transport_proto = TRANSPORT_PROTO_UDP;
- udp_register_dst_port (um->vlib_main, clib_net_to_host_u16 (lcl->port),
- udp4_uri_input_node.index, 0 /* is_ipv4 */ );
- return 0;
+ pool_put (udp_main.connections[uc->c_thread_index], uc);
+ if (CLIB_DEBUG)
+ memset (uc, 0xFA, sizeof (*uc));
}
u32
-udp_session_unbind_ip4 (u32 listener_index)
+udp_session_bind (u32 session_index, transport_endpoint_t * lcl)
{
+ udp_main_t *um = vnet_get_udp_main ();
vlib_main_t *vm = vlib_get_main ();
udp_connection_t *listener;
- listener = udp_listener_get (listener_index);
+ u32 node_index;
+ void *iface_ip;
+ udp_dst_port_info_t *pi;
- /* deregister the udp_local mapping */
- udp_unregister_dst_port (vm, listener->c_lcl_port, 1 /* is_ipv4 */ );
- return 0;
+ pi = udp_get_dst_port_info (um, lcl->port, lcl->is_ip4);
+ if (pi)
+ return -1;
+
+ pool_get (um->listener_pool, listener);
+ memset (listener, 0, sizeof (udp_connection_t));
+
+ listener->c_lcl_port = lcl->port;
+ listener->c_c_index = listener - um->listener_pool;
+
+ /* If we are provided a sw_if_index, bind using one of its ips */
+ if (ip_is_zero (&lcl->ip, 1) && lcl->sw_if_index != ENDPOINT_INVALID_INDEX)
+ {
+ if ((iface_ip = ip_interface_get_first_ip (lcl->sw_if_index,
+ lcl->is_ip4)))
+ ip_set (&lcl->ip, iface_ip, lcl->is_ip4);
+ }
+ ip_copy (&listener->c_lcl_ip, &lcl->ip, lcl->is_ip4);
+ listener->c_is_ip4 = lcl->is_ip4;
+ listener->c_proto = TRANSPORT_PROTO_UDP;
+ listener->c_s_index = session_index;
+ listener->c_fib_index = lcl->fib_index;
+
+ node_index = lcl->is_ip4 ? udp4_input_node.index : udp6_input_node.index;
+ udp_register_dst_port (vm, clib_net_to_host_u16 (lcl->port), node_index,
+ 1 /* is_ipv4 */ );
+ return listener->c_c_index;
}
u32
-udp_session_unbind_ip6 (u32 listener_index)
+udp_session_unbind (u32 listener_index)
{
vlib_main_t *vm = vlib_get_main ();
- udp_connection_t *listener;
+ udp_connection_t *listener;
listener = udp_listener_get (listener_index);
-
- /* deregister the udp_local mapping */
- udp_unregister_dst_port (vm, listener->c_lcl_port, 0 /* is_ipv4 */ );
+ udp_unregister_dst_port (vm, clib_net_to_host_u16 (listener->c_lcl_port),
+ listener->c_is_ip4);
return 0;
}
}
u32
-udp_push_header (transport_connection_t * tconn, vlib_buffer_t * b)
+udp_push_header (transport_connection_t * tc, vlib_buffer_t * b)
{
- udp_connection_t *us;
- u8 *data;
- udp_header_t *udp;
+ udp_connection_t *uc;
+ vlib_main_t *vm = vlib_get_main ();
- us = (udp_connection_t *) tconn;
+ uc = udp_get_connection_from_transport (tc);
- if (tconn->is_ip4)
- {
- ip4_header_t *ip;
-
- data = vlib_buffer_get_current (b);
- udp = (udp_header_t *) (data - sizeof (udp_header_t));
- ip = (ip4_header_t *) ((u8 *) udp - sizeof (ip4_header_t));
-
- /* Build packet header, swap rx key src + dst fields */
- ip->src_address.as_u32 = us->c_lcl_ip4.as_u32;
- ip->dst_address.as_u32 = us->c_rmt_ip4.as_u32;
- ip->ip_version_and_header_length = 0x45;
- ip->ttl = 254;
- ip->protocol = IP_PROTOCOL_UDP;
- ip->length = clib_host_to_net_u16 (b->current_length + sizeof (*udp));
- ip->checksum = ip4_header_checksum (ip);
-
- udp->src_port = us->c_lcl_port;
- udp->dst_port = us->c_rmt_port;
- udp->length = clib_host_to_net_u16 (b->current_length);
- udp->checksum = 0;
-
- b->current_length = sizeof (*ip) + sizeof (*udp);
- return SESSION_QUEUE_NEXT_IP4_LOOKUP;
- }
+ vlib_buffer_push_udp (b, uc->c_lcl_port, uc->c_rmt_port, 1);
+ if (tc->is_ip4)
+ vlib_buffer_push_ip4 (vm, b, &uc->c_lcl_ip4, &uc->c_rmt_ip4,
+ IP_PROTOCOL_UDP, 1);
else
{
- vlib_main_t *vm = vlib_get_main ();
- ip6_header_t *ip;
- u16 payload_length;
- int bogus = ~0;
-
- data = vlib_buffer_get_current (b);
- udp = (udp_header_t *) (data - sizeof (udp_header_t));
- ip = (ip6_header_t *) ((u8 *) udp - sizeof (ip6_header_t));
-
- /* Build packet header, swap rx key src + dst fields */
- clib_memcpy (&ip->src_address, &us->c_lcl_ip6, sizeof (ip6_address_t));
- clib_memcpy (&ip->dst_address, &us->c_rmt_ip6, sizeof (ip6_address_t));
-
- ip->ip_version_traffic_class_and_flow_label =
- clib_host_to_net_u32 (0x6 << 28);
-
- ip->hop_limit = 0xff;
- ip->protocol = IP_PROTOCOL_UDP;
-
- payload_length = vlib_buffer_length_in_chain (vm, b);
- payload_length -= sizeof (*ip);
-
- ip->payload_length = clib_host_to_net_u16 (payload_length);
-
- udp->checksum = ip6_tcp_udp_icmp_compute_checksum (vm, b, ip, &bogus);
- ASSERT (!bogus);
-
- udp->src_port = us->c_lcl_port;
- udp->dst_port = us->c_rmt_port;
- udp->length = clib_host_to_net_u16 (b->current_length);
- udp->checksum = 0;
-
- b->current_length = sizeof (*ip) + sizeof (*udp);
-
- return SESSION_QUEUE_NEXT_IP6_LOOKUP;
+ ip6_header_t *ih;
+ ih = vlib_buffer_push_ip6 (vm, b, &uc->c_lcl_ip6, &uc->c_rmt_ip6,
+ IP_PROTOCOL_UDP);
+ vnet_buffer (b)->l3_hdr_offset = (u8 *) ih - b->data;
}
+ vnet_buffer (b)->sw_if_index[VLIB_RX] = 0;
+ vnet_buffer (b)->sw_if_index[VLIB_TX] = ~0;
+ b->flags |= VNET_BUFFER_F_LOCALLY_ORIGINATED;
+
+ return 0;
}
transport_connection_t *
-udp_session_get (u32 connection_index, u32 my_thread_index)
+udp_session_get (u32 connection_index, u32 thread_index)
{
- udp_uri_main_t *um = vnet_get_udp_main ();
+ udp_connection_t *uc;
+ uc = udp_connection_get (connection_index, thread_index);
+ if (uc)
+ return &uc->connection;
+ return 0;
+}
- udp_connection_t *us;
- us =
- pool_elt_at_index (um->udp_sessions[my_thread_index], connection_index);
- return &us->connection;
+void
+udp_session_close (u32 connection_index, u32 thread_index)
+{
+ vlib_main_t *vm = vlib_get_main ();
+ udp_connection_t *uc;
+ uc = udp_connection_get (connection_index, thread_index);
+ if (uc)
+ {
+ udp_unregister_dst_port (vm, clib_net_to_host_u16 (uc->c_lcl_port),
+ uc->c_is_ip4);
+ stream_session_delete_notify (&uc->connection);
+ udp_connection_free (uc);
+ }
}
void
-udp_session_close (u32 connection_index, u32 my_thread_index)
+udp_session_cleanup (u32 connection_index, u32 thread_index)
{
- udp_uri_main_t *um = vnet_get_udp_main ();
- pool_put_index (um->udp_sessions[my_thread_index], connection_index);
+ udp_connection_t *uc;
+ uc = udp_connection_get (connection_index, thread_index);
+ if (uc)
+ udp_connection_free (uc);
}
u8 *
-format_udp_session_ip4 (u8 * s, va_list * args)
+format_udp_connection_id (u8 * s, va_list * args)
{
- u32 uci = va_arg (*args, u32);
- u32 thread_index = va_arg (*args, u32);
- udp_connection_t *u4;
-
- u4 = udp_connection_get (uci, thread_index);
+ udp_connection_t *uc = va_arg (*args, udp_connection_t *);
+ if (!uc)
+ return s;
+ if (uc->c_is_ip4)
+ s = format (s, "[#%d][%s] %U:%d->%U:%d", uc->c_thread_index, "U",
+ format_ip4_address, &uc->c_lcl_ip4,
+ clib_net_to_host_u16 (uc->c_lcl_port), format_ip4_address,
+ &uc->c_rmt_ip4, clib_net_to_host_u16 (uc->c_rmt_port));
+ else
+ s = format (s, "[#%d][%s] %U:%d->%U:%d", uc->c_thread_index, "U",
+ format_ip6_address, &uc->c_lcl_ip6,
+ clib_net_to_host_u16 (uc->c_lcl_port), format_ip6_address,
+ &uc->c_rmt_ip6, clib_net_to_host_u16 (uc->c_rmt_port));
+ return s;
+}
- s = format (s, "[%s] %U:%d->%U:%d", "udp", format_ip4_address,
- &u4->c_lcl_ip4, clib_net_to_host_u16 (u4->c_lcl_port),
- format_ip4_address, &u4->c_rmt_ip4,
- clib_net_to_host_u16 (u4->c_rmt_port));
+u8 *
+format_udp_connection (u8 * s, va_list * args)
+{
+ udp_connection_t *uc = va_arg (*args, udp_connection_t *);
+ u32 verbose = va_arg (*args, u32);
+ if (!uc)
+ return s;
+ s = format (s, "%-50U", format_udp_connection_id, uc);
+ if (verbose)
+ {
+ if (verbose == 1)
+ s = format (s, "%-15s", "-");
+ else
+ s = format (s, "\n");
+ }
return s;
}
u8 *
-format_udp_session_ip6 (u8 * s, va_list * args)
+format_udp_session (u8 * s, va_list * args)
{
u32 uci = va_arg (*args, u32);
u32 thread_index = va_arg (*args, u32);
- udp_connection_t *tc = udp_connection_get (uci, thread_index);
- s = format (s, "[%s] %U:%d->%U:%d", "udp", format_ip6_address,
- &tc->c_lcl_ip6, clib_net_to_host_u16 (tc->c_lcl_port),
- format_ip6_address, &tc->c_rmt_ip6,
- clib_net_to_host_u16 (tc->c_rmt_port));
- return s;
+ u32 verbose = va_arg (*args, u32);
+ udp_connection_t *uc;
+
+ uc = udp_connection_get (uci, thread_index);
+ return format (s, "%U", format_udp_connection, uc, verbose);
}
u8 *
-format_udp_listener_session_ip4 (u8 * s, va_list * args)
+format_udp_half_open_session (u8 * s, va_list * args)
{
- u32 tci = va_arg (*args, u32);
- udp_connection_t *tc = udp_listener_get (tci);
- s = format (s, "[%s] %U:%d->%U:%d", "udp", format_ip4_address,
- &tc->c_lcl_ip4, clib_net_to_host_u16 (tc->c_lcl_port),
- format_ip4_address, &tc->c_rmt_ip4,
- clib_net_to_host_u16 (tc->c_rmt_port));
- return s;
+ clib_warning ("BUG");
+ return 0;
}
u8 *
-format_udp_listener_session_ip6 (u8 * s, va_list * args)
+format_udp_listener_session (u8 * s, va_list * args)
{
u32 tci = va_arg (*args, u32);
- udp_connection_t *tc = udp_listener_get (tci);
- s = format (s, "[%s] %U:%d->%U:%d", "udp", format_ip6_address,
- &tc->c_lcl_ip6, clib_net_to_host_u16 (tc->c_lcl_port),
- format_ip6_address, &tc->c_rmt_ip6,
- clib_net_to_host_u16 (tc->c_rmt_port));
- return s;
+ udp_connection_t *uc = udp_listener_get (tci);
+ return format (s, "%U", format_udp_connection, uc);
}
u16
-udp_send_mss_uri (transport_connection_t * t)
+udp_send_mss (transport_connection_t * t)
{
/* TODO figure out MTU of output interface */
- return 400;
+ return 1460;
}
u32
-udp_send_space_uri (transport_connection_t * t)
+udp_send_space (transport_connection_t * t)
{
/* No constraint on TX window */
return ~0;
}
int
-udp_open_connection (transport_endpoint_t * tep)
+udp_open_connection (transport_endpoint_t * rmt)
{
- clib_warning ("Not implemented");
- return 0;
+ udp_main_t *um = vnet_get_udp_main ();
+ vlib_main_t *vm = vlib_get_main ();
+ u32 thread_index = vlib_get_thread_index ();
+ udp_connection_t *uc;
+ ip46_address_t lcl_addr;
+ u32 node_index;
+ u16 lcl_port;
+
+ if (transport_alloc_local_endpoint (TRANSPORT_PROTO_UDP, rmt, &lcl_addr,
+ &lcl_port))
+ return -1;
+
+ while (udp_get_dst_port_info (um, lcl_port, rmt->is_ip4))
+ {
+ lcl_port = transport_alloc_local_port (TRANSPORT_PROTO_UDP, &lcl_addr);
+ if (lcl_port < 1)
+ {
+ clib_warning ("Failed to allocate src port");
+ return -1;
+ }
+ }
+
+ node_index = rmt->is_ip4 ? udp4_input_node.index : udp6_input_node.index;
+ udp_register_dst_port (vm, lcl_port, node_index, 1 /* is_ipv4 */ );
+
+ uc = udp_connection_alloc (thread_index);
+ ip_copy (&uc->c_rmt_ip, &rmt->ip, rmt->is_ip4);
+ ip_copy (&uc->c_lcl_ip, &lcl_addr, rmt->is_ip4);
+ uc->c_rmt_port = rmt->port;
+ uc->c_lcl_port = clib_host_to_net_u16 (lcl_port);
+ uc->c_is_ip4 = rmt->is_ip4;
+ uc->c_proto = TRANSPORT_PROTO_UDP;
+ uc->c_fib_index = rmt->fib_index;
+
+ return uc->c_c_index;
}
-/* *INDENT-OFF* */
-const static transport_proto_vft_t udp4_proto = {
- .bind = udp_session_bind_ip4,
- .open = udp_open_connection,
- .unbind = udp_session_unbind_ip4,
- .push_header = udp_push_header,
- .get_connection = udp_session_get,
- .get_listener = udp_session_get_listener,
- .close = udp_session_close,
- .send_mss = udp_send_mss_uri,
- .send_space = udp_send_space_uri,
- .format_connection = format_udp_session_ip4,
- .format_listener = format_udp_listener_session_ip4
-};
+transport_connection_t *
+udp_half_open_session_get_transport (u32 conn_index)
+{
+ udp_connection_t *uc;
+ uc = udp_connection_get (conn_index, vlib_get_thread_index ());
+ return &uc->connection;
+}
-const static transport_proto_vft_t udp6_proto = {
- .bind = udp_session_bind_ip6,
+/* *INDENT-OFF* */
+const static transport_proto_vft_t udp_proto = {
+ .bind = udp_session_bind,
.open = udp_open_connection,
- .unbind = udp_session_unbind_ip6,
+ .unbind = udp_session_unbind,
.push_header = udp_push_header,
.get_connection = udp_session_get,
.get_listener = udp_session_get_listener,
+ .get_half_open = udp_half_open_session_get_transport,
.close = udp_session_close,
- .send_mss = udp_send_mss_uri,
- .send_space = udp_send_space_uri,
- .format_connection = format_udp_session_ip6,
- .format_listener = format_udp_listener_session_ip6
+ .cleanup = udp_session_cleanup,
+ .send_mss = udp_send_mss,
+ .send_space = udp_send_space,
+ .format_connection = format_udp_session,
+ .format_half_open = format_udp_half_open_session,
+ .format_listener = format_udp_listener_session
};
/* *INDENT-ON* */
static clib_error_t *
udp_init (vlib_main_t * vm)
{
- udp_uri_main_t *um = vnet_get_udp_main ();
+ udp_main_t *um = vnet_get_udp_main ();
ip_main_t *im = &ip_main;
vlib_thread_main_t *tm = vlib_get_thread_main ();
u32 num_threads;
clib_error_t *error = 0;
ip_protocol_info_t *pi;
- um->vlib_main = vm;
- um->vnet_main = vnet_get_main ();
-
if ((error = vlib_call_init_function (vm, ip_main_init)))
return error;
if ((error = vlib_call_init_function (vm, ip4_lookup_init)))
/* Register as transport with URI */
- session_register_transport (TRANSPORT_PROTO_UDP, 1, &udp4_proto);
- session_register_transport (TRANSPORT_PROTO_UDP, 0, &udp6_proto);
+ transport_register_protocol (TRANSPORT_PROTO_UDP, 1, &udp_proto);
+ transport_register_protocol (TRANSPORT_PROTO_UDP, 0, &udp_proto);
/*
* Initialize data structures
*/
num_threads = 1 /* main thread */ + tm->n_threads;
- vec_validate (um->udp_sessions, num_threads - 1);
-
+ vec_validate (um->connections, num_threads - 1);
+ vec_validate (um->connection_peekers, num_threads - 1);
+ vec_validate (um->peekers_readers_locks, num_threads - 1);
+ vec_validate (um->peekers_write_locks, num_threads - 1);
return error;
}
#include <vnet/ip/ip.h>
#include <vnet/session/transport.h>
-typedef struct
-{
- transport_connection_t connection; /** must be first */
-
- /** ersatz MTU to limit fifo pushes to test data size */
- u32 mtu;
-} udp_connection_t;
-
-typedef struct _udp_uri_main
-{
- /* Per-worker thread udp connection pools */
- udp_connection_t **udp_sessions;
- udp_connection_t *udp_listeners;
-
- /* convenience */
- vlib_main_t *vlib_main;
- vnet_main_t *vnet_main;
- ip4_main_t *ip4_main;
- ip6_main_t *ip6_main;
-} udp_uri_main_t;
-
-extern udp_uri_main_t udp_uri_main;
-extern vlib_node_registration_t udp4_uri_input_node;
-
-always_inline udp_uri_main_t *
-vnet_get_udp_main ()
-{
- return &udp_uri_main;
-}
-
-always_inline udp_connection_t *
-udp_connection_get (u32 conn_index, u32 thread_index)
-{
- return pool_elt_at_index (udp_uri_main.udp_sessions[thread_index],
- conn_index);
-}
-
-always_inline udp_connection_t *
-udp_listener_get (u32 conn_index)
-{
- return pool_elt_at_index (udp_uri_main.udp_listeners, conn_index);
-}
-
typedef enum
{
#define udp_error(n,s) UDP_ERROR_##n,
UDP_N_ERROR,
} udp_error_t;
+typedef struct
+{
+ transport_connection_t connection; /** must be first */
+ /** ersatz MTU to limit fifo pushes to test data size */
+ u32 mtu;
+} udp_connection_t;
+
#define foreach_udp4_dst_port \
_ (53, dns) \
_ (67, dhcp_to_server) \
u8 punt_unknown4;
u8 punt_unknown6;
- /* convenience */
- vlib_main_t *vlib_main;
+ /*
+ * Per-worker thread udp connection pools used with session layer
+ */
+ udp_connection_t **connections;
+ u32 *connection_peekers;
+ clib_spinlock_t *peekers_readers_locks;
+ clib_spinlock_t *peekers_write_locks;
+ udp_connection_t *listener_pool;
+
} udp_main_t;
+extern udp_main_t udp_main;
+extern vlib_node_registration_t udp4_input_node;
+extern vlib_node_registration_t udp6_input_node;
+
+always_inline udp_connection_t *
+udp_connection_get (u32 conn_index, u32 thread_index)
+{
+ if (pool_is_free_index (udp_main.connections[thread_index], conn_index))
+ return 0;
+ return pool_elt_at_index (udp_main.connections[thread_index], conn_index);
+}
+
+always_inline udp_connection_t *
+udp_listener_get (u32 conn_index)
+{
+ return pool_elt_at_index (udp_main.listener_pool, conn_index);
+}
+
+always_inline udp_main_t *
+vnet_get_udp_main ()
+{
+ return &udp_main;
+}
+
+always_inline udp_connection_t *
+udp_get_connection_from_transport (transport_connection_t * tc)
+{
+ return ((udp_connection_t *) tc);
+}
+
+always_inline u32
+udp_connection_index (udp_connection_t * uc)
+{
+ return (uc - udp_main.connections[uc->c_thread_index]);
+}
+
+udp_connection_t *udp_connection_alloc (u32 thread_index);
+
+/**
+ * Acquires a lock that blocks a connection pool from expanding.
+ */
+always_inline void
+udp_pool_add_peeker (u32 thread_index)
+{
+ if (thread_index != vlib_get_thread_index ())
+ return;
+ clib_spinlock_lock_if_init (&udp_main.peekers_readers_locks[thread_index]);
+ udp_main.connection_peekers[thread_index] += 1;
+ if (udp_main.connection_peekers[thread_index] == 1)
+ clib_spinlock_lock_if_init (&udp_main.peekers_write_locks[thread_index]);
+ clib_spinlock_unlock_if_init (&udp_main.peekers_readers_locks
+ [thread_index]);
+}
+
+always_inline void
+udp_pool_remove_peeker (u32 thread_index)
+{
+ if (thread_index != vlib_get_thread_index ())
+ return;
+ ASSERT (udp_main.connection_peekers[thread_index] > 0);
+ clib_spinlock_lock_if_init (&udp_main.peekers_readers_locks[thread_index]);
+ udp_main.connection_peekers[thread_index] -= 1;
+ if (udp_main.connection_peekers[thread_index] == 0)
+ clib_spinlock_unlock_if_init (&udp_main.peekers_write_locks
+ [thread_index]);
+ clib_spinlock_unlock_if_init (&udp_main.peekers_readers_locks
+ [thread_index]);
+}
+
+always_inline udp_connection_t *
+udp_conenction_clone_safe (u32 connection_index, u32 thread_index)
+{
+ udp_connection_t *old_c, *new_c;
+ u32 current_thread_index = vlib_get_thread_index ();
+ new_c = udp_connection_alloc (current_thread_index);
+
+ /* If during the memcpy pool is reallocated AND the memory allocator
+ * decides to give the old chunk of memory to somebody in a hurry to
+ * scribble something on it, we have a problem. So add this thread as
+ * a session pool peeker.
+ */
+ udp_pool_add_peeker (thread_index);
+ old_c = udp_main.connections[thread_index] + connection_index;
+ clib_memcpy (new_c, old_c, sizeof (*new_c));
+ udp_pool_remove_peeker (thread_index);
+ new_c->c_thread_index = current_thread_index;
+ new_c->c_c_index = udp_connection_index (new_c);
+ return new_c;
+}
+
+
always_inline udp_dst_port_info_t *
udp_get_dst_port_info (udp_main_t * um, udp_dst_port_t dst_port, u8 is_ip4)
{
format_function_t format_udp_header;
format_function_t format_udp_rx_trace;
-
unformat_function_t unformat_udp_header;
void udp_register_dst_port (vlib_main_t * vm,
udp_dst_port_t dst_port,
u32 node_index, u8 is_ip4);
-
-void
-udp_unregister_dst_port (vlib_main_t * vm,
- udp_dst_port_t dst_port, u8 is_ip4);
+void udp_unregister_dst_port (vlib_main_t * vm,
+ udp_dst_port_t dst_port, u8 is_ip4);
void udp_punt_unknown (vlib_main_t * vm, u8 is_ip4, u8 is_add);
+always_inline void *
+vlib_buffer_push_udp (vlib_buffer_t * b, u16 sp, u16 dp, u8 offload_csum)
+{
+ udp_header_t *uh;
+
+ uh = vlib_buffer_push_uninit (b, sizeof (udp_header_t));
+ uh->src_port = sp;
+ uh->dst_port = dp;
+ uh->checksum = 0;
+ uh->length = clib_host_to_net_u16 (b->current_length);
+ if (offload_csum)
+ {
+ b->flags |= VNET_BUFFER_F_OFFLOAD_UDP_CKSUM;
+ vnet_buffer (b)->l4_hdr_offset = (u8 *) uh - b->data;
+ }
+ return uh;
+}
+
always_inline void
ip_udp_fixup_one (vlib_main_t * vm, vlib_buffer_t * b0, u8 is_ip4)
{
udp_error (NO_LISTENER, "no listener for dst port")
udp_error (LENGTH_ERROR, "UDP packets with length errors")
udp_error (PUNT, "no listener punt")
+udp_error (ENQUEUED, "UDP packets enqueued")
+udp_error (FIFO_FULL, "UDP fifo full")
+udp_error (NOT_READY, "UDP connection not ready")
+udp_error (LISTENER, "UDP connected session")
+udp_error (CREATE_SESSION, "Failed to create UDP session")
+udp_error (EVENT_FIFO_FULL, "UDP session event fifo full")
#include <vlibmemory/api.h>
#include "../session/application_interface.h"
-vlib_node_registration_t udp4_uri_input_node;
+static char *udp_error_strings[] = {
+#define udp_error(n,s) s,
+#include "udp_error.def"
+#undef udp_error
+};
typedef struct
{
- u32 session;
+ u32 connection;
u32 disposition;
u32 thread_index;
-} udp4_uri_input_trace_t;
+} udp_input_trace_t;
/* packet trace format function */
static u8 *
-format_udp4_uri_input_trace (u8 * s, va_list * args)
+format_udp_input_trace (u8 * s, va_list * args)
{
CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
- udp4_uri_input_trace_t *t = va_arg (*args, udp4_uri_input_trace_t *);
+ udp_input_trace_t *t = va_arg (*args, udp_input_trace_t *);
- s = format (s, "UDP4_URI_INPUT: session %d, disposition %d, thread %d",
- t->session, t->disposition, t->thread_index);
+ s = format (s, "UDP_INPUT: connection %d, disposition %d, thread %d",
+ t->connection, t->disposition, t->thread_index);
return s;
}
+#define foreach_udp_input_next \
+ _ (DROP, "error-drop")
+
typedef enum
{
- UDP4_URI_INPUT_NEXT_DROP,
- UDP4_URI_INPUT_N_NEXT,
-} udp4_uri_input_next_t;
-
-static char *udp4_uri_input_error_strings[] = {
-#define _(sym,string) string,
- foreach_session_input_error
+#define _(s, n) UDP_INPUT_NEXT_##s,
+ foreach_udp_input_next
#undef _
-};
+ UDP_INPUT_N_NEXT,
+} udp_input_next_t;
-static uword
-udp4_uri_input_node_fn (vlib_main_t * vm,
- vlib_node_runtime_t * node, vlib_frame_t * frame)
+always_inline void
+udp_input_inc_counter (vlib_main_t * vm, u8 is_ip4, u8 evt, u8 val)
+{
+ if (PREDICT_TRUE (!val))
+ return;
+
+ if (is_ip4)
+ vlib_node_increment_counter (vm, udp4_input_node.index, evt, val);
+ else
+ vlib_node_increment_counter (vm, udp6_input_node.index, evt, val);
+}
+
+always_inline uword
+udp46_input_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
+ vlib_frame_t * frame, u8 is_ip4)
{
u32 n_left_from, *from, *to_next;
- udp4_uri_input_next_t next_index;
- udp_uri_main_t *um = vnet_get_udp_main ();
- session_manager_main_t *smm = vnet_get_session_manager_main ();
+ u32 next_index, errors;
u32 my_thread_index = vm->thread_index;
- u8 my_enqueue_epoch;
- u32 *session_indices_to_enqueue;
- static u32 serial_number;
- int i;
-
- my_enqueue_epoch = ++smm->current_enqueue_epoch[my_thread_index];
from = vlib_frame_vector_args (frame);
n_left_from = frame->n_vectors;
while (n_left_from > 0 && n_left_to_next > 0)
{
- u32 bi0;
+ u32 bi0, fib_index0;
vlib_buffer_t *b0;
- u32 next0 = UDP4_URI_INPUT_NEXT_DROP;
- u32 error0 = SESSION_ERROR_ENQUEUED;
+ u32 next0 = UDP_INPUT_NEXT_DROP;
+ u32 error0 = UDP_ERROR_ENQUEUED;
udp_header_t *udp0;
- ip4_header_t *ip0;
- stream_session_t *s0;
- svm_fifo_t *f0;
- u16 udp_len0;
+ ip4_header_t *ip40;
+ ip6_header_t *ip60;
u8 *data0;
+ stream_session_t *s0;
+ transport_connection_t *tc0 = 0;
+ udp_connection_t *child0, *new_uc0;
+ int written0;
/* speculatively enqueue b0 to the current next frame */
bi0 = from[0];
b0 = vlib_get_buffer (vm, bi0);
/* udp_local hands us a pointer to the udp data */
-
data0 = vlib_buffer_get_current (b0);
udp0 = (udp_header_t *) (data0 - sizeof (*udp0));
+ fib_index0 = vnet_buffer (b0)->ip.fib_index;
- /* $$$$ fixme: udp_local doesn't do ip options correctly anyhow */
- ip0 = (ip4_header_t *) (((u8 *) udp0) - sizeof (*ip0));
- s0 = 0;
-
- /* lookup session */
- s0 = session_lookup4 (0, &ip0->dst_address, &ip0->src_address,
- udp0->dst_port, udp0->src_port,
- TRANSPORT_PROTO_UDP);
+ if (is_ip4)
+ {
+ /* $$$$ fixme: udp_local doesn't do ip options correctly anyhow */
+ ip40 = (ip4_header_t *) (((u8 *) udp0) - sizeof (*ip40));
+ s0 = session_lookup_safe4 (fib_index0, &ip40->dst_address,
+ &ip40->src_address, udp0->dst_port,
+ udp0->src_port, TRANSPORT_PROTO_UDP);
+ }
+ else
+ {
+ ip60 = (ip6_header_t *) (((u8 *) udp0) - sizeof (*ip60));
+ s0 = session_lookup_safe6 (fib_index0, &ip60->dst_address,
+ &ip60->src_address, udp0->dst_port,
+ udp0->src_port, TRANSPORT_PROTO_UDP);
+ }
- /* no listener */
if (PREDICT_FALSE (s0 == 0))
{
- error0 = SESSION_ERROR_NO_LISTENER;
+ error0 = UDP_ERROR_NO_LISTENER;
goto trace0;
}
- f0 = s0->server_rx_fifo;
-
- /* established hit */
if (PREDICT_TRUE (s0->session_state == SESSION_STATE_READY))
{
- udp_len0 = clib_net_to_host_u16 (udp0->length);
-
- if (PREDICT_FALSE (udp_len0 > svm_fifo_max_enqueue (f0)))
- {
- error0 = SESSION_ERROR_FIFO_FULL;
- goto trace0;
- }
-
- svm_fifo_enqueue_nowait (f0, udp_len0 - sizeof (*udp0),
- (u8 *) (udp0 + 1));
-
- b0->error = node->errors[SESSION_ERROR_ENQUEUED];
-
- /* We need to send an RX event on this fifo */
- if (s0->enqueue_epoch != my_enqueue_epoch)
- {
- s0->enqueue_epoch = my_enqueue_epoch;
-
- vec_add1 (smm->session_indices_to_enqueue_by_thread
- [my_thread_index],
- s0 - smm->sessions[my_thread_index]);
- }
+ tc0 = session_get_transport (s0);
}
- /* listener hit */
- else if (s0->session_state == SESSION_STATE_LISTENING)
+ else if (s0->session_state == SESSION_STATE_CONNECTING_READY)
{
- udp_connection_t *us;
- int rv;
-
- error0 = SESSION_ERROR_NOT_READY;
-
/*
- * create udp transport session
+ * Clone the transport. It will be cleaned up with the
+ * session once we notify the session layer.
*/
- pool_get (um->udp_sessions[my_thread_index], us);
-
- us->mtu = 1024; /* $$$$ policy */
-
- us->c_lcl_ip4.as_u32 = ip0->dst_address.as_u32;
- us->c_rmt_ip4.as_u32 = ip0->src_address.as_u32;
- us->c_lcl_port = udp0->dst_port;
- us->c_rmt_port = udp0->src_port;
- us->c_transport_proto = TRANSPORT_PROTO_UDP;
- us->c_c_index = us - um->udp_sessions[my_thread_index];
+ new_uc0 = udp_conenction_clone_safe (s0->connection_index,
+ s0->thread_index);
+ ASSERT (s0->session_index == new_uc0->c_s_index);
/*
- * create stream session and attach the udp session to it
+ * Drop the 'lock' on pool resize
*/
- rv = stream_session_accept (&us->connection, s0->session_index,
- 1 /*notify */ );
- if (rv)
- error0 = rv;
+ session_pool_remove_peeker (s0->thread_index);
+ session_dgram_connect_notify (&new_uc0->connection,
+ s0->thread_index, &s0);
+ tc0 = &new_uc0->connection;
+ }
+ else if (s0->session_state == SESSION_STATE_LISTENING)
+ {
+ tc0 = listen_session_get_transport (s0);
+
+ child0 = udp_connection_alloc (my_thread_index);
+ if (is_ip4)
+ {
+ ip_set (&child0->c_lcl_ip, &ip40->dst_address, 1);
+ ip_set (&child0->c_rmt_ip, &ip40->src_address, 1);
+ }
+ else
+ {
+ ip_set (&child0->c_lcl_ip, &ip60->dst_address, 0);
+ ip_set (&child0->c_rmt_ip, &ip60->src_address, 0);
+ }
+ child0->c_lcl_port = udp0->dst_port;
+ child0->c_rmt_port = udp0->src_port;
+ child0->c_is_ip4 = is_ip4;
+ child0->mtu = 1460; /* $$$$ policy */
+
+ if (stream_session_accept
+ (&child0->connection, tc0->s_index, 1))
+ {
+ error0 = UDP_ERROR_CREATE_SESSION;
+ goto trace0;
+ }
+ s0 = session_get (child0->c_s_index, child0->c_thread_index);
+ s0->session_state = SESSION_STATE_READY;
+ tc0 = &child0->connection;
+ error0 = UDP_ERROR_LISTENER;
}
else
{
+ error0 = UDP_ERROR_NOT_READY;
+ goto trace0;
+ }
- error0 = SESSION_ERROR_NOT_READY;
+ written0 = session_enqueue_dgram_connection (s0, b0, tc0->proto,
+ 1 /* queue evt */ );
+ if (PREDICT_FALSE (written0 < 0))
+ {
+ error0 = UDP_ERROR_FIFO_FULL;
goto trace0;
}
if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)
&& (b0->flags & VLIB_BUFFER_IS_TRACED)))
{
- udp4_uri_input_trace_t *t =
- vlib_add_trace (vm, node, b0, sizeof (*t));
+ udp_input_trace_t *t = vlib_add_trace (vm, node, b0,
+ sizeof (*t));
- t->session = ~0;
- if (s0)
- t->session = s0 - smm->sessions[my_thread_index];
+ t->connection = tc0 ? tc0->c_index : ~0;
t->disposition = error0;
t->thread_index = my_thread_index;
}
- /* verify speculative enqueue, maybe switch current next frame */
vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
to_next, n_left_to_next,
bi0, next0);
vlib_put_next_frame (vm, node, next_index, n_left_to_next);
}
- /* Send enqueue events */
-
- session_indices_to_enqueue =
- smm->session_indices_to_enqueue_by_thread[my_thread_index];
-
- for (i = 0; i < vec_len (session_indices_to_enqueue); i++)
- {
- session_fifo_event_t evt;
- unix_shared_memory_queue_t *q;
- stream_session_t *s0;
- application_t *server0;
-
- /* Get session */
- s0 = pool_elt_at_index (smm->sessions[my_thread_index],
- session_indices_to_enqueue[i]);
-
- /* Get session's server */
- server0 = application_get (s0->app_index);
-
- /* Built-in server? Deliver the goods... */
- if (server0->cb_fns.builtin_server_rx_callback)
- {
- server0->cb_fns.builtin_server_rx_callback (s0);
- continue;
- }
-
- if (svm_fifo_set_event (s0->server_rx_fifo))
- {
- /* Fabricate event */
- evt.fifo = s0->server_rx_fifo;
- evt.event_type = FIFO_EVENT_APP_RX;
- evt.event_id = serial_number++;
-
- /* Add event to server's event queue */
- q = server0->event_queue;
-
- /* Don't block for lack of space */
- if (PREDICT_TRUE (q->cursize < q->maxsize))
- {
- unix_shared_memory_queue_add (server0->event_queue,
- (u8 *) & evt,
- 0 /* do wait for mutex */ );
- }
- else
- {
- vlib_node_increment_counter (vm, udp4_uri_input_node.index,
- SESSION_ERROR_FIFO_FULL, 1);
- }
- }
- /* *INDENT-OFF* */
- if (1)
- {
- ELOG_TYPE_DECLARE (e) =
- {
- .format = "evt-enqueue: id %d length %d",
- .format_args = "i4i4",};
- struct
- {
- u32 data[2];
- } *ed;
- ed = ELOG_DATA (&vlib_global_main.elog_main, e);
- ed->data[0] = evt.event_id;
- ed->data[1] = svm_fifo_max_dequeue (s0->server_rx_fifo);
- }
- /* *INDENT-ON* */
+ errors = session_manager_flush_enqueue_events (TRANSPORT_PROTO_UDP,
+ my_thread_index);
+ udp_input_inc_counter (vm, is_ip4, UDP_ERROR_EVENT_FIFO_FULL, errors);
+ return frame->n_vectors;
+}
- }
+vlib_node_registration_t udp4_input_node;
+vlib_node_registration_t udp6_input_node;
- vec_reset_length (session_indices_to_enqueue);
+static uword
+udp4_input (vlib_main_t * vm, vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ return udp46_input_inline (vm, node, frame, 1);
+}
- smm->session_indices_to_enqueue_by_thread[my_thread_index] =
- session_indices_to_enqueue;
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (udp4_input_node) =
+{
+ .function = udp4_input,
+ .name = "udp4-input",
+ .vector_size = sizeof (u32),
+ .format_trace = format_udp_input_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+ .n_errors = ARRAY_LEN (udp_error_strings),
+ .error_strings = udp_error_strings,
+ .n_next_nodes = UDP_INPUT_N_NEXT,
+ .next_nodes = {
+#define _(s, n) [UDP_INPUT_NEXT_##s] = n,
+ foreach_udp_input_next
+#undef _
+ },
+};
+/* *INDENT-ON* */
- return frame->n_vectors;
+static uword
+udp6_input (vlib_main_t * vm, vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ return udp46_input_inline (vm, node, frame, 0);
}
-VLIB_REGISTER_NODE (udp4_uri_input_node) =
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (udp6_input_node) =
{
- .function = udp4_uri_input_node_fn,.name = "udp4-uri-input",.vector_size =
- sizeof (u32),.format_trace = format_udp4_uri_input_trace,.type =
- VLIB_NODE_TYPE_INTERNAL,.n_errors =
- ARRAY_LEN (udp4_uri_input_error_strings),.error_strings =
- udp4_uri_input_error_strings,.n_next_nodes = UDP4_URI_INPUT_N_NEXT,
- /* edit / add dispositions here */
- .next_nodes =
- {
- [UDP4_URI_INPUT_NEXT_DROP] = "error-drop",}
-,};
+ .function = udp6_input,
+ .name = "udp6-input",
+ .vector_size = sizeof (u32),
+ .format_trace = format_udp_input_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+ .n_errors = ARRAY_LEN (udp_error_strings),
+ .error_strings = udp_error_strings,
+ .n_next_nodes = UDP_INPUT_N_NEXT,
+ .next_nodes = {
+#define _(s, n) [UDP_INPUT_NEXT_##s] = n,
+ foreach_udp_input_next
+#undef _
+ },
+};
+/* *INDENT-ON* */
/*
* fd.io coding-style-patch-verification: ON
udp_main_t udp_main;
-#define foreach_udp_input_next \
+#define foreach_udp_local_next \
_ (PUNT, "error-punt") \
_ (DROP, "error-drop") \
_ (ICMP4_ERROR, "ip4-icmp-error") \
typedef enum
{
-#define _(s,n) UDP_INPUT_NEXT_##s,
- foreach_udp_input_next
+#define _(s,n) UDP_LOCAL_NEXT_##s,
+ foreach_udp_local_next
#undef _
- UDP_INPUT_N_NEXT,
-} udp_input_next_t;
+ UDP_LOCAL_N_NEXT,
+} udp_local_next_t;
typedef struct
{
u16 src_port;
u16 dst_port;
u8 bound;
-} udp_rx_trace_t;
+} udp_local_rx_trace_t;
u8 *
format_udp_rx_trace (u8 * s, va_list * args)
{
CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
- udp_rx_trace_t *t = va_arg (*args, udp_rx_trace_t *);
+ udp_local_rx_trace_t *t = va_arg (*args, udp_local_rx_trace_t *);
s = format (s, "UDP: src-port %d dst-port %d%s",
clib_net_to_host_u16 (t->src_port),
return s;
}
-vlib_node_registration_t udp4_input_node;
-vlib_node_registration_t udp6_input_node;
+vlib_node_registration_t udp4_local_node;
+vlib_node_registration_t udp6_local_node;
always_inline uword
-udp46_input_inline (vlib_main_t * vm,
+udp46_local_inline (vlib_main_t * vm,
vlib_node_runtime_t * node,
vlib_frame_t * from_frame, int is_ip4)
{
if (PREDICT_FALSE (b0->current_length < advance0 + sizeof (*h0)))
{
error0 = UDP_ERROR_LENGTH_ERROR;
- next0 = UDP_INPUT_NEXT_DROP;
+ next0 = UDP_LOCAL_NEXT_DROP;
}
else
{
vlib_buffer_length_in_chain (vm, b0)))
{
error0 = UDP_ERROR_LENGTH_ERROR;
- next0 = UDP_INPUT_NEXT_DROP;
+ next0 = UDP_LOCAL_NEXT_DROP;
}
}
if (PREDICT_FALSE (b1->current_length < advance1 + sizeof (*h1)))
{
error1 = UDP_ERROR_LENGTH_ERROR;
- next1 = UDP_INPUT_NEXT_DROP;
+ next1 = UDP_LOCAL_NEXT_DROP;
}
else
{
vlib_buffer_length_in_chain (vm, b1)))
{
error1 = UDP_ERROR_LENGTH_ERROR;
- next1 = UDP_INPUT_NEXT_DROP;
+ next1 = UDP_LOCAL_NEXT_DROP;
}
}
if (PREDICT_FALSE (punt_unknown))
{
b0->error = node->errors[UDP_ERROR_PUNT];
- next0 = UDP_INPUT_NEXT_PUNT;
+ next0 = UDP_LOCAL_NEXT_PUNT;
}
else if (is_ip4)
{
ICMP4_destination_unreachable,
ICMP4_destination_unreachable_port_unreachable,
0);
- next0 = UDP_INPUT_NEXT_ICMP4_ERROR;
+ next0 = UDP_LOCAL_NEXT_ICMP4_ERROR;
n_no_listener++;
}
else
ICMP6_destination_unreachable,
ICMP6_destination_unreachable_port_unreachable,
0);
- next0 = UDP_INPUT_NEXT_ICMP6_ERROR;
+ next0 = UDP_LOCAL_NEXT_ICMP6_ERROR;
n_no_listener++;
}
}
if (PREDICT_FALSE (punt_unknown))
{
b1->error = node->errors[UDP_ERROR_PUNT];
- next1 = UDP_INPUT_NEXT_PUNT;
+ next1 = UDP_LOCAL_NEXT_PUNT;
}
else if (is_ip4)
{
ICMP4_destination_unreachable,
ICMP4_destination_unreachable_port_unreachable,
0);
- next1 = UDP_INPUT_NEXT_ICMP4_ERROR;
+ next1 = UDP_LOCAL_NEXT_ICMP4_ERROR;
n_no_listener++;
}
else
ICMP6_destination_unreachable,
ICMP6_destination_unreachable_port_unreachable,
0);
- next1 = UDP_INPUT_NEXT_ICMP6_ERROR;
+ next1 = UDP_LOCAL_NEXT_ICMP6_ERROR;
n_no_listener++;
}
}
if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
{
- udp_rx_trace_t *tr = vlib_add_trace (vm, node,
- b0, sizeof (*tr));
+ udp_local_rx_trace_t *tr = vlib_add_trace (vm, node,
+ b0, sizeof (*tr));
if (b0->error != node->errors[UDP_ERROR_LENGTH_ERROR])
{
tr->src_port = h0 ? h0->src_port : 0;
tr->dst_port = h0 ? h0->dst_port : 0;
- tr->bound = (next0 != UDP_INPUT_NEXT_ICMP4_ERROR &&
- next0 != UDP_INPUT_NEXT_ICMP6_ERROR);
+ tr->bound = (next0 != UDP_LOCAL_NEXT_ICMP4_ERROR &&
+ next0 != UDP_LOCAL_NEXT_ICMP6_ERROR);
}
}
if (PREDICT_FALSE (b1->flags & VLIB_BUFFER_IS_TRACED))
{
- udp_rx_trace_t *tr = vlib_add_trace (vm, node,
- b1, sizeof (*tr));
+ udp_local_rx_trace_t *tr = vlib_add_trace (vm, node,
+ b1, sizeof (*tr));
if (b1->error != node->errors[UDP_ERROR_LENGTH_ERROR])
{
tr->src_port = h1 ? h1->src_port : 0;
tr->dst_port = h1 ? h1->dst_port : 0;
- tr->bound = (next1 != UDP_INPUT_NEXT_ICMP4_ERROR &&
- next1 != UDP_INPUT_NEXT_ICMP6_ERROR);
+ tr->bound = (next1 != UDP_LOCAL_NEXT_ICMP4_ERROR &&
+ next1 != UDP_LOCAL_NEXT_ICMP6_ERROR);
}
}
if (PREDICT_FALSE (b0->current_length < advance0 + sizeof (*h0)))
{
b0->error = node->errors[UDP_ERROR_LENGTH_ERROR];
- next0 = UDP_INPUT_NEXT_DROP;
+ next0 = UDP_LOCAL_NEXT_DROP;
goto trace_x1;
}
if (PREDICT_FALSE (punt_unknown))
{
b0->error = node->errors[UDP_ERROR_PUNT];
- next0 = UDP_INPUT_NEXT_PUNT;
+ next0 = UDP_LOCAL_NEXT_PUNT;
}
else if (is_ip4)
{
ICMP4_destination_unreachable,
ICMP4_destination_unreachable_port_unreachable,
0);
- next0 = UDP_INPUT_NEXT_ICMP4_ERROR;
+ next0 = UDP_LOCAL_NEXT_ICMP4_ERROR;
n_no_listener++;
}
else
ICMP6_destination_unreachable,
ICMP6_destination_unreachable_port_unreachable,
0);
- next0 = UDP_INPUT_NEXT_ICMP6_ERROR;
+ next0 = UDP_LOCAL_NEXT_ICMP6_ERROR;
n_no_listener++;
}
}
else
{
b0->error = node->errors[UDP_ERROR_LENGTH_ERROR];
- next0 = UDP_INPUT_NEXT_DROP;
+ next0 = UDP_LOCAL_NEXT_DROP;
}
trace_x1:
if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
{
- udp_rx_trace_t *tr = vlib_add_trace (vm, node,
- b0, sizeof (*tr));
+ udp_local_rx_trace_t *tr = vlib_add_trace (vm, node,
+ b0, sizeof (*tr));
if (b0->error != node->errors[UDP_ERROR_LENGTH_ERROR])
{
tr->src_port = h0->src_port;
tr->dst_port = h0->dst_port;
- tr->bound = (next0 != UDP_INPUT_NEXT_ICMP4_ERROR &&
- next0 != UDP_INPUT_NEXT_ICMP6_ERROR);
+ tr->bound = (next0 != UDP_LOCAL_NEXT_ICMP4_ERROR &&
+ next0 != UDP_LOCAL_NEXT_ICMP6_ERROR);
}
}
};
static uword
-udp4_input (vlib_main_t * vm,
+udp4_local (vlib_main_t * vm,
vlib_node_runtime_t * node, vlib_frame_t * from_frame)
{
- return udp46_input_inline (vm, node, from_frame, 1 /* is_ip4 */ );
+ return udp46_local_inline (vm, node, from_frame, 1 /* is_ip4 */ );
}
static uword
-udp6_input (vlib_main_t * vm,
+udp6_local (vlib_main_t * vm,
vlib_node_runtime_t * node, vlib_frame_t * from_frame)
{
- return udp46_input_inline (vm, node, from_frame, 0 /* is_ip4 */ );
+ return udp46_local_inline (vm, node, from_frame, 0 /* is_ip4 */ );
}
-
/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (udp4_input_node) = {
- .function = udp4_input,
+VLIB_REGISTER_NODE (udp4_local_node) = {
+ .function = udp4_local,
.name = "ip4-udp-lookup",
/* Takes a vector of packets. */
.vector_size = sizeof (u32),
.n_errors = UDP_N_ERROR,
.error_strings = udp_error_strings,
- .n_next_nodes = UDP_INPUT_N_NEXT,
+ .n_next_nodes = UDP_LOCAL_N_NEXT,
.next_nodes = {
-#define _(s,n) [UDP_INPUT_NEXT_##s] = n,
- foreach_udp_input_next
+#define _(s,n) [UDP_LOCAL_NEXT_##s] = n,
+ foreach_udp_local_next
#undef _
},
};
/* *INDENT-ON* */
-VLIB_NODE_FUNCTION_MULTIARCH (udp4_input_node, udp4_input);
+VLIB_NODE_FUNCTION_MULTIARCH (udp4_local_node, udp4_local);
/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (udp6_input_node) = {
- .function = udp6_input,
+VLIB_REGISTER_NODE (udp6_local_node) = {
+ .function = udp6_local,
.name = "ip6-udp-lookup",
/* Takes a vector of packets. */
.vector_size = sizeof (u32),
.n_errors = UDP_N_ERROR,
.error_strings = udp_error_strings,
- .n_next_nodes = UDP_INPUT_N_NEXT,
+ .n_next_nodes = UDP_LOCAL_N_NEXT,
.next_nodes = {
-#define _(s,n) [UDP_INPUT_NEXT_##s] = n,
- foreach_udp_input_next
+#define _(s,n) [UDP_LOCAL_NEXT_##s] = n,
+ foreach_udp_local_next
#undef _
},
};
/* *INDENT-ON* */
-VLIB_NODE_FUNCTION_MULTIARCH (udp6_input_node, udp6_input);
+VLIB_NODE_FUNCTION_MULTIARCH (udp6_local_node, udp6_local);
static void
add_dst_port (udp_main_t * um,
pi->node_index = node_index;
pi->next_index = vlib_node_add_next (vm,
- is_ip4 ? udp4_input_node.index
- : udp6_input_node.index, node_index);
+ is_ip4 ? udp4_local_node.index
+ : udp6_local_node.index, node_index);
/* Setup udp protocol -> next index sparse vector mapping. */
if (is_ip4)
um->dst_port_info_by_dst_port[i] = hash_create (0, sizeof (uword));
}
- udp_setup_node (vm, udp4_input_node.index);
- udp_setup_node (vm, udp6_input_node.index);
+ udp_setup_node (vm, udp4_local_node.index);
+ udp_setup_node (vm, udp6_local_node.index);
um->punt_unknown4 = 0;
um->punt_unknown6 = 0;
#define _(n,s) add_dst_port (um, UDP_DST_PORT_##s, #s, 0 /* is_ip4 */);
foreach_udp6_dst_port
#undef _
- ip4_register_protocol (IP_PROTOCOL_UDP, udp4_input_node.index);
+ ip4_register_protocol (IP_PROTOCOL_UDP, udp4_local_node.index);
/* Note: ip6 differs from ip4, UDP is hotwired to ip6-udp-lookup */
return 0;
}
Code Review / vpp.git / commitdiff